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MANUAL GTZ
AUTOMATIZACIÓN
Índice
Capítulo 1: Fuerzas - Paralelogramo de fuerzas
Capítulo 2: Momentos de giro, palanca simple
Capítulo 3: Velocidad - Velocidad circular
Capítulo 4: Potencia mecánica – Rendimiento
Capítulo 5: Plano inclinado – Cuna
Capítulo 6: Poleas – Aparejos
Capítulo 7: Transmisiones por engranajes
Capítulo 8: Transmisiones Múltiples
Capítulo 9: Rueda dentada – Cremallera – Engranaje helicoidal
Capítulo 10: Troneado cónico
Capítulo 11: Presión sobre líquidos – Amplificador de fuerzas
Capítulo 12: Tensión y resistencia a la tracción
Capítulo 13: Tensión por compresión – Presión del vástago
Capítulo 14: Tensión de corte – Uniones remachadas
Capítulo 15: Corte - Perforación
Índice
Capítulo 1: Fuerzas
Capítulo 2: Trabajo
Capítulo 3:
Capítulo 4:
Capítulo 5:
2000
3000
250
150
2172
40000 181.81
80 1920
117.64 12
43.64 76.36 11.43 8.57
2083.33 2916.67 6315.78
7000 5000 4000 8000
7291.67 6708.33 25.6 14.4
CAPÍTULO 31.4
v = s
t
s = v.t
s = 120 km . 1 h
h 4
s = 30 km
1 )
v = s
t
v = 12km (4)
3.h
v = 16km = 16000m = 4.4m
h 3600 s s
2.)
vm = s
t
vm = 200mm
0.6(60min)
vm = 4.17mm = 0.25m
min s
vm = 15m
min
3.)
v = s
t
t = s
v
t = 800mm.min
60mm
t = 13.3min
4.)
v = s
t
t = s
v
t = 20m.s
0.15m
t = 133s
5.)
v = S / t
t = s / v
t = 0.160 m x min
8 m
t = 0.02 min = 1.2 s
6.)
v = s / t
s = v x t
s = 16 m x 16 min
60 min
s = 4.267 m
7.)
v = s / t
t = s / v
t = 20 m x s
4m
t = 5 s
8.)
CAPITULO 31.5
v = D x π x n
v = 0.6 m x 3.14 x 1061
v = 33.3 m/s = 33.3 Km x 3600
1000h
v = 120 Km / h
1.)
v = D x π x n
v = 0.12 m x 3.14 x 160
1 min
v = 60.3 m/min = 60.3 m
60 s
v = 1 m/s
2.)
v = D x π x n
D = v
π x n
D = 25 m x 60 s
3.14 x 2000
D = 0.239 m = 239 mm
3.)
v = d. π.n
n = v
d. π
n = 25 m g
min(0.016m)(3.14)
n = 498 1
min
4.)
v = d. π.n
n = __v__
d. π
n = ______40m______
(0.012m)(3.14)(min.)
n = 1062
min.
5.)
v = d. π.n
v = (0.08m)(3.14)(90)
min.
v = 22.6m
min.
6.)
v = d. π.n
n = __v__
d. π
n = _____40 m______
(0.4m)(3.14)(min.)
n = 31.8
min.
7.)
v = d. π.n
v = (0.15m)(3.14)(2400)
min.
v = 1130m
min.
v = 1130m
60min.
v = 18.8m
s
8.)
CAPÍTULO 32.3
1.kg. = 10 N
G = 600N + 400N
G = 1000N
P = F.s
t
P = (1000N)(5m)
15s
P = 333Nm
s
P = 333W
1.)
P = F.v
v = 20_m_
min.
v = 0.33_m_
s
P = (28000N)(0.333m)
s
P = 9324Nm
S
P = 9.324kW
2.)
3.)
m = 1 T = 1 000 kg
G = 10 000 N
P = F x s
t
P = 10 000 N x 4 m
5 s
P = 8 000 Nm = 8 000 W
s
P = 8 kW
4.)
v = d x π x n
v = 0.1 m x 3.14 x 420 x 1
60 s
v = 2.2 m/s
P = F x v
P = 1 455 N x 2.2 m/s
P = 3 201 W = 3.201 KW
5.)
P = F x s
t
P = 200 N x 6 m
12 s
P = 100 Nm
s
P = 100 W
6.)
P = F x s
t
P = 20 000 N x 20 m
40 s
P = 10 000 Nm = 10 000 W
s
P = 10 kW
7.)
v = 24 m/min = 0.4 m/s
P = F x v
F = P
v
F = 3 000 Ws (1W = 1 N m)
0.4 m s
F = 7 500 N
8.)
700 m3 = 700 000 dm3 → P = 7 000 000 N
n n t = 3 600 s
P = F x s
t
P = 7 000 000 N x 200 m
3 600 s
P = 388 888 Nm = 388 888 W
s
P = 389 kW
a)
Solución
20m
33.1
b)
Solución
120m
c)
Solución
10m
a)
Solución
33.2
b)
Solución
c)
Solución
a)
Solución
33.3
b)
Solución
c)
Solución
1)
Solución
33.4
2)
Solución
3)
Solución
4)
Solución
5)
Solución
6)
Solución
7)
Solución
8)
Solución
33.5
1)
2)
4)
5)
6)
7)
34.1
a)
34.2
1)
2)
3)
4)
5)
6)
7)
8)
Solución
35.1
SOLUCION
a)
d=m*z
d= 1.75*16
d= 28mm
h=13/6m
h=13/6*1.75
h=3.79mm
b)
d=m*z
d= 1.75*12
d= 21mm
h=13/6m
h=13/6*1.75
h=3.79mm
c)
α=360º/72º =5
z= 3*5=15
d=m*z
d= 15*4
d=60 mm
35.2
SOLUCION
a)
a = (d1/2) + (d2/2)
a = (72/2) + (112/2)
a = 92 mm
b)
a = (m.z1)/2 + (m.z2)/2
a = (5*19)/2 + (5*30)/2
a = 122.5
c)
a = (d1/2) + d2 + (d3/2)
d2 = m . z2 = 2.5*36 = 90
a = (46/2) + 90 + (20/2) = 123
35.3
35.4
SOLUCION
1)
d=m*z ha= m = 4 mm
d= 4*28
d= 112mm
h=13/6m
h=13/6*4
h=8.67mm
2)
z= 24
d =m*z
d= 5*24
d= 120 mm
da= d + 2m
da=120+2*5
da=130 mm
df=120-(14/6)*5
df=108.33mm
3)
z= 16
ha=m
ha=1.75mm
hf=7/6 m
hf=(7*1.75)/6 mm
hf=2.04mm
4)
da= d+2m d= z*m
da= z*m + 2m d=2.5*32 mm
da= m(z+2) d=80mm
m= da/(z+2) df=d-(14/6)*m
m=85/(32+2) df=80-(14/6)*2.5
m=2.5mm df=74.17mm
5)
d1=m*z1 a=(d1/2)+(d2/2)
z1=d1/m a=(75mm/2) +(159mm/2)
z1=75mm/3mm a=117mm
z1=25
d2=m*z2
z2=d2/m
z2=159mm/3mm
z2=53
6)
d1=m*z1
d1=2.5*31
d1=77.5mm
d2=m*z2
d2=2.5*59
d2=147.5mm
a=(d1/2)+(d2/2)
a=(77.5mm/2) +(147.5mm/2)
a=112.5mm
7)
d1=m*z1
d1=4*31
d1=124 mm
d2=m*z2
z2=d2/m
z2=192mm/4mm
z2=48
a=(d1/2)+(d2/2)
2a= d1+d2
d2= 2a-d1
d2= 2*156mm-124mm
d2=192mm
8)
d1=m*z1
d1=2.5*31
d1=77.5 mm
d2=m*z2
d2=2.5mm*92
d2=230mm
a=(d2/2)-(d1/2)
a= (230mm/2)-(77.5mm/2)
a=75.25mm
35.5
SOLUCION
1)
a = m . z1 m . z2
2 2
a = 5mm . 5 + 5mm . 15
2 2
a = 50 mm
2)
a = m. z1 + m . z2
2 2
a = 8mm . 16 + 8mm . 12
2 2
a = 112 mm
n 1 = z2
n 2 z1
n2 = n1 . z1
z2
n2 = 700 . 16 n2 = 933 (1/min)
min . 12
3)
1 = M2
M1
M2 = 1. M1
M2 = 2. 10 Nm
M2 = 20 Nm
4)
a = d1 + d2
2 2
a = m . z1 + m . z2
2 2
a = 4 mm . 17 + 4 mm . 49
2 2
a = 132
i = z2
z1
i = 49
17
i = 2.88
SOLUCION
5)
6)
7)
8)
36.1
SOLUCION
A)
i=(z2*z4/z1*z3)
i= 24*28/12*12
i= 3
B)
i=(z2*z4/z1*z3)
i= 45*45/15*15
i= 9
I =n1/n4
9=720/n4
n4= 720/9
n4=80
C)
i=(z2*z4/z1*z3)
Z1=(z2*z4/i*z3)
Z1= 36*36/9*12
Z1= 12
36.2
36.3
SOLUCION
9)
N/n min= 21*28/7*7
N min = n/12
N min= 3000/12
N min=250
N/n max= 21*15/7*15
N max = n/3
N max= 3000/3
N max= 1000
10)
1400/n = 120*25/80*15
N = 1400* 80*15 /120*25
N = 560
11)
1000/n min = 35*15/15*15
N min= 1000*15/35
N min= 429
1000/n max = 35*30/15*30
N max= 1000*30/35
N max= 857
12)
700/n = 34*39/17*13
N = 700/6
N= 117
I=700/117
I=6
SOLUCION
13)
1400/n min = 31*50/19*13
N min= 1400*19*13 /31*50
N min= 223
1400 =n max
N max = 1400
14)
N min = 1400*60*15/18*30
N = 223
15)
N/350 = 34*30/17*15
N=350*34*30/17*15
N=1400
16)
1400/n min= 120*31/80*15
N min= 1400*80*15/120*31
N min=452
1400/n max= 80*31/120*15
N max= 1400*120*15/80*31
N max= 1016
Ejercicio 37.1
s = m * z * 
s = 4 mm * 12 * 3,14
s = 150,72 mm
37.1
1.
z = 12
m = 4 mm
37.1
2.
s = m * z * 
s = 5 mm * 15 * 3,14
s = 235,5 mm
z = 15
m = 5 mm
 = ?
37.1
a.
z = 12 m = 6 mm
S = 226,08 mm
s = m * z * 
s = 6 mm * 12 * 3,14
S = ?
37.1
b.
 = 60º
 = ?
s = 2 *40 * 
s = 251.2
37.1
c.
z = 21 m = 4 mm
s = 263,76 mm
s = m * z * 
s = 4 mm * 21 * 3,14
Ejercicio 37.2
37.2
1.
i = 40
Z2 = 40 i = ?
Z1 =1
37.2
2.
37.2
a.
i = ? Z2 = 40
Z1 = 2
37.2
b.
i = ?
37.2
c.
i = ?
Datos Solución
EJERCICIO 37.1
CAPÍTULO 37
Datos Solución
EJERCICIO 37.2
Datos Solución
EJERCICIO 37.3
Datos Solución
EJERCICIO 37.4
Datos Solución
EJERCICIO 37.5
Datos Solución
EJERCICIO 37.6
Datos Solución
EJERCICIO 37.7
Datos Solución
EJERCICIO 37.8
Datos Solución
EJERCICIO 37.9
Datos Solución
EJERCICIO 37.10
Datos Solución
EJERCICIO 37.11
Datos Solución
EJERCICIO 37.12
Datos Solución
EJERCICIO 37.13
Datos Solución
EJERCICIO 37.14
Datos Solución
EJERCICIO 37.15
Datos Solución
EJERCICIO 37.16
38.1
1
2
a)
b)
c)
38.2
1
2
a)
b)
c)
138.3
238.3
338.3
438.3
538.3
638.3
738.3
838.3
P = F
A
39.1
P = F / A
F = P* A
F = (30 daN/cm2)*(12.56 cm2)
F = 377 daN
Solución:
Solución:
P = 1000 daN = 20 bar
50 cm2
a)
b)
Solución:
P = 1000 daN = 10 bar
100 cm2
c)
Solución:
P = 62.8 daN
P = 20 bar*π* (2cm / 2)^2
F
1
* A
2 F
2
* A
1
F
2
A
1
39.2
Solución:
F1 = F2 F1 = 8000N * 3.14 cm2
A1 A2 28.26 cm2
F1 = P2 * A1
A2 F1 = 250 N
Solución:
F1 = F2
A1 A2
F1 = P2 * A1
A2
F1 = 1 000N * 4 cm2
16 cm2
F1 = 250 N
Solución:
F1 = F2
A1 A2
F1 = P2 * A1
A2
A2 = 200 N * 4 cm2
50 N
A2 = 16 cm2
F1 = 50 N * 400 cm2
100cm2
F1 = 200 N
Solución:
Solución:
F1 = 8 daN * 12.6 cm2
cm2
F1 = 1008 N
F = P * A
39.3
Solución:
P = 500 daN * 100 mm2
628 mm2 * 1cm2
P = 79.62 bar
Solución:
F = P * A
F = 12 bar * π * (2cm)^2
F = 150.78 daN
Solución:
F1 = F2
A1 A2
F1 = P2 * A1
A2
F2 = 120 N * (36 cm)^2 * π
(12 cm)^2 * π
F2 = 1080 N
Solución: A = 200 daN *cm2
63.7 bar
A = 3.14 cm2
A = π r^2
r=1cm
d = 20 mm
Solución:
F1 = 120 daN * 28.26 cm2
cm2
F1 = 33.9 KN
Solución:
P = F/ A
25 bar = F/A
25 daN/cm2 = F/ (π*2.83cm)^2
F = 157.25 daN
Solución:
(r1)^2 = 80N * (20 mm)^2 * π
320 N * π
2r1 = 20 mm
r1 =10mm
d1 = 20 mm
P = F
A
P = 320 N
(2 cm)^2 * π
P = 25.47 bar
PROBLEMA 39.4 – 9
P = F
A
F = P.A
F =4,5 daN.254 cm2
cm2
F = 1143 daN
m = 1143 Kg
PROBLEMA 39.4 – 10
A = (D2 - d2 ). 3,14
4
A = (62 cm2 – 22 cm2 ). 3,14
4
A = 25,13 cm2
P = F
A
F = F
(D2 - d2 ). 0,785
F = P. (D2 - d2 ). 0,785
F = 25 daN. (62 - 22 ). 0,785 cm2
cm2
F = 628 daN
PROBLEMA 39.4 – 11
F2 = F1
A2 A1
F2 = F1 . A2
A1
F2 =25N. 3,62 . 0,785cm2
1,22 . 0,785cm2
F2 = 225 N
PROBLEMA 39.4 – 12
P = F
A
F = P.A
F =4,5 daN. 62 . 0,785 cm2
cm2
F = 1272 daN
F = 12,72 KN
PROBLEMA 39.4 – 13
P = F
A
P = 100 daN
22 . 0,785 cm2
P = 31,8 daN
cm2
F = 31,8 bar
PROBLEMA 39.4 – 14
F2 = F1
A2 A1
F2 = F1 . A2
A1
F2 = 70N. 12,56cm2
3,14cm2
F2 = 280 N
PROBLEMA 39.4 – 15
P = F
A
F = P.A
F =24 daN. (2,832 - 22 )0,785 cm2
cm2
F = 7,55 daN
F = 75,5 N
PROBLEMA 39.4 – 16
P = F
A
F = P.A
F =50 daN. 10,2 cm2
cm2
F = 816 daN
m = 816 kg
PROBLEMAS
40.1
PROBLEMAS 40.2
PROBLEMAS 40.3
1 2
3 4
A
F

2
200
8000
mm
N

PROBLEMAS 40.3
5 6
*2
A
F

7
A
F

8
PROBLEMAS 40.4
9.-
σ = F / A
σ = 800 N
( 45 – 15 ) mm * 15 mm
σ = 17.8 N/ mm2
10.-
A = 100 mm2 * 3.14 * 0.25
A = 78.5 mm2
Rm = Fm / A
Fm = Rm * A
Fm = 370 N/ mm2 * 78.5 mm2
Fm = 29045 N
11.-
σ = F / A
F = σ * A
F = 85 N/ mm2 * ( 120 - 13 )mm *
15mm
F = 136.4 KN
12.-
m = 600 Kg
G = 6000 N
σ1 = G / A
σ1 = 6000 N * 4
144 mm2 * 3.14
σ1 = 53 N / mm2
2 F22 = G2
F2 = ( G2 / 2 )1/2
F2 = G / 21/2
F2 = 4243 N
σ2 = F2 / A
σ2 = 4243 N * 4
144 mm2 * 3.14
σ2 = 37.5 N / mm2
PROBLEMAS 40.4
13.-
800 Kg = 8000 N
σ = G / A
σ = 8000 N * 4
225 mm2 * 3.14
σ = 45 N / mm2
14.-
σ = F / A
F = σ * A
A = 5mm (40mm – 10mm)
A = 150 mm2
F = 100 N / mm2 * 150 mm2
F = 15000 N
15.-
4t = 40000 N
G = 40000 N
F = u * G
F = 0.3 * 40000 N
F = 12000 N
σ = F / A
σ = 12000 N * 4
256 mm2 * 3.14
σ = 60 N/ mm2
16.-
σ = F / A
σ = 800 N * 4
2 * 64 mm2 * 3.14
σ = 8 N/ mm2
PROBLEMAS 41.1
PROBLEMAS 41.2
PROBLEMAS 41.3
PROBLEMAS 41.3
PROBLEMAS 41.4
PROBLEMAS 41.4
42.1
42.1
2
2
23.90
133
12000
mm
N
mm
N
A
F






42.1
2
2
5,63
10000
5,157
mmA
A
N
mm
N



42.1
2
2
2
2
)11.(
84
130
16000
130
2
mm
N
mm
N
mmA
A




42.2
42.2
2
2
2
2
)15.(
85
353
30000
353
2
mm
N
mm
N
mmA
A




42.2
2
2
2
2
)11.(
105
130
20000
130
2
mm
N
mm
N
mmA
A




42.2
2
2
2
2
8,18
8,1061
20000
8,1061
2
)13.(
.4
mm
N
mm
N
mmA
A








 

42.3
2
2
2
4
)10.(
153
5,78
12000
5,78
2
mm
N
mm
N
mmA
A




42.3
KNF
NF
mm
mm
N
F
AF
A
F
mmA
A
04,9
9040
113.80
.
113
2
2
2
4
)12.( 2







42.3
KNF
NF
mm
mm
N
F
AF
A
F
mmA
A
85,7
7850
157.50
.
157
.2
2
2
2
4
)10.( 2







42.3
2
.2.4
4.16000
116
2,4
4
50
10
50
1
10
4
2
mm
N
A
F
mmd
mmmmd
mm
mmd
N








42.3
2
22
127
.5
4.2500
2500
02,0
50
.
mm
N
mm
N
A
F
NF
m
Nm
F
r
M
F
rFM








42.3
3125
8
500.50
8
500.1
500.18.




F
N
F
mm
mmF
F
mmFmmF
 
2
2
2
2
124
12,25
3125
12,25
4
.4
.2
4
.
.2
2
mm
N
mm
N
A
F
mmA
mm
A
d
A








42.3
2
2
226
100
.22600
mmA
N
mmN
A
F
A
A
F





 
mmd
mm
d
A
d
A
d
d
A
12
.2
226.4
.2
.4
.2
.4
4
.
.2
2
2
2









2
2
226
100
.22600
mmA
N
mmN
A
F
A
A
F





 
mmd
mm
d
A
d
A
d
d
A
12
.2
226.4
.2
.4
.2
.4
4
.
.2
2
2
2









42.3
 
NF
NF
FF
mm
mmF
F
mmFmmF
25002
500.52
1.52
20
100.1
2
100.120.2





2
22
2
25
.8,2
4.2500
..2
.
mm
N
mm
N
d
dF





42.4
2
22
1326
.19
4.8000
mm
N
mm
N
A
F




2
28
15.19
8000
mm
N
P
mmmm
N
P
A
F
P



42.4
NF
mm
mm
N
F
AF
A
F
13267
4
1
..13.100
.
22
2




2
128
13.6
13267
mm
N
P
mmmm
N
P
A
F
P



42.4
P-3
= P/A
= 15000N x 4
2x172mm2(π)
= 33N/mm2
P = F/A
P = . 15000N .
17mmx12mm
P = 74 N/mm2
P-4
= P/A
40 N/mm2= 18000N
A
A = 450mm2
2(450mm2)
π
A = 2(d2)(π)
4
d =
d = 17 mm
P-5
= P/A
= 54000N x 4
2x3x132mm2(π)
= 80N/mm2
P-6
= P/A
= Fx4
2d2(π)
F = 80N(132mm2)(π)
mm2(2)
F = 21226N = 21,226KN
P-7
= P/A
= Fx4
2(4)d2(π)
= 60000N(4)
2(4)132mm2(π)
F = 56,5N /mm2
P-8
= P/A
F = d2(π)
F = 100N/mm2(152mm2)(π)
F = 70650N = 70,65KN
P = F/A
P = 70650N
4(15mm)(6mm)
P = 196 N/mm2
43.1
= Fm /A
Fm =
Fm = 100N/mm2(4mm2)
Fm = 400N
(A)
= Fm /A
Fm =
Fm = 200N/mm2(30x5mm2)
Fm = 30KN
(A)
= Fm /A
Fm =
Fm = 160N/mm2(20xπx2)mm2
Fm = 20,1KN
(A)
43.2
P-1
= Fm/A
Fm= (A)
Fm = 320N/mm2(20mm)(π)(3mm)
Fm = 60288N = 60,288KN
P-2
= Fm /A
A = 45000N.mm2
240N
A = 187,5 mm2
A = 30mm(π)(X)
X = 187,5mm2
30mm(π)
X = 2mm
P-3
(A)
= Fm /A
Fm =
Fm = 200N/mm2(502mm2)(π)1/4
Fm = 392500N = 392,5KN
P-4
= Fm /A
Fm =
Fm = 160N/mm2(21mm)(π)(2,5mm)
Fm = 26376N = 392,5KN
(A)
P-5
= Fm /A
Fm =
Fm = 180N/mm2(2x100+ 2x80)mm(4mm)
Fm = 259200N= 259,2KN
(A)
P-6
= Fm /A
Fm =
Fm = 200N/mm2(640mm2)
Fm = 128000N = 128KN
(A)
A = (2x50+ 2x30)mm(4mm)
A = 640mm2
P-7
X2= 242+402
X =
X = 46,6mm
A = (24+40+46,6)mm(3mm)
A = 332mm2
242+402
= Fm /A
Fm =
Fm = 160N/mm2(332mm2)
Fm = 53088N = 53KN
(A)
P-8 A1= 10,5mm(π)(2mm)
A1= 66mm2
A2= 21mm(π)(2mm)
A2= 132 mm2
= Fm 1/A
Fm 1= 180N/mm2(66mm2)
Fm1 = 11,9KN
Fm 1= (A)
= Fm2 /A
Fm2 =
Fm2 = 180N/mm2(132mm2)
Fm 2=23,8KN
(A)
Ejercicio – Pág. 27.1
N625
8.2
)5.3(500
1F
)5.3(2F)8.2(1F


NF
F
66.6662
)3(2)2(1000


NF
F
5001
)250(100)50(1

b.a. c.
Ejercicio Nº 1- 2– Pág. 27.2
N9090.90
220
50*400
1F
50*400220*1F
2d*2F1d*1F



5.262
1200
420*750
1F
420*7501200*1F
2d*G1d*1F


2.1.
Ejercicio Nº 3 - 4 – Pág. 27.2
KN25.6
400
500*5
1F
500*5400*2F
1d*1F2d*2F



N6667.1066
300
80*4000
1F
80*G300*1F
N4000GN10Kg1


4.3.
Ejercicio Nº 5- 6 – Pág. 27.2
KN12
200
300*8
1F
300*8200*1F
2d*2F1d*1F



KN9
240
180*12
1F
180*12240*1F
2d*2F1d*1F


6.5.
Ejercicio Nº 7 - 8 – Pág. 27.2
daN33.83
120
400*25
1F
400*25120*2F
1d*1F2d*2F



KN03.3
98.197
300*2
2F
300*298.197*2F
1d*1F2d*2F
98.1972d
45cos*2802d
280/2d45cos






8.7.
Ejercicio Nº 1 - 2 – Pág. 28.2
N600F
2000*3.0F
G*F


 
N320F
4000*08.0F
G*FN4000G
Kg400m
200200m
2m1mm







2.
1.
Ejercicio Nº 3 - 4 – Pág. 28.2
04545.0
2200/100
G*FN2200G
Kg220m
7010050m
3m2m1mm








 KN144.0F
8.1*08.0F
G*F


 4.3.
Ejercicio Nº 5 - 6 – Pág. 28.2
4.0*2
200
Fn
2
G
Fn
Fn*2*G





KN75.3F
15*25.0F
Fn*F


 6.5.
Ejercicio Nº 7 – Pág. 28.2
N160Fn
)1600(80)8000(Fn


KN40F
N160*25.0F
Fn*F


 
Nm3M
075.0*N40M
*FM


 c.
a.
b.
Ejercicio Nº 8 – Pág. 28.2
Nm6M
03.0*N200M
*FM
KN2.0F
KN5*04.0F
Fn*F








29.2 - 1
W=G.s
W=9000N.2m
W=18000Nm
W=18000J
29.2 - 2
W=G.s
W=45N.3m
W=135Nm
W=135J
29.2 - 3
W=G.s
W=3000N.3m
W=9000Nm
W=9000J
29.2 - 4
W=G.s
W=2000N.2m
W=4000Nm
W=4000J
29.2 - 5
W=G.s
G=h/s
G=200000Nm/6m
G=25000N
10N=1kg
M=2500kg=2,5T
29.2 - 6
m=m1+m2
m=25kg+70kg
m=95kg
W=G.s
W=950N.2000m
W=1900000Nm=
1900000J=1900kJ
29.2 - 7
m=V.f
V=2dm.4dm.10dm
V=80dm3
m=80x7,8
m=624kg
W=G.s
W=6240N.6m
W=37440Nm
W=37440J=37,44kJ
29.2 - 8
m=V.f
V=1x3,14 x 40dm
4
V=31,4dm3
m=31,44x7,8
m=245kg=0,245T
W=G.s
s=W/G
s=4900Nm/2450N
s=2m
29.3 - 9
W=G.s
s=W/G
s=5000000Nm
500000N
s=10m
W=G.s
W=1000000KN.20m
W=20 Mio KJ
29.3 - 10
W=F.s
W=2KN.1,2m
W=2.4 KJ
29.3 - 11
F.400mm=G.r
F= GR
400mm
F=120N.200mm
400mm
F=60
W=G.s
W=120N.6m
W=720Nm=720J
29.3 - 12
W=G.s
W=80N.12m
W=960Nm
W=960J
29.3 - 13
W=F.s
F=µ .G
F=0.3.1000N
F=300N
W=300N.8m
W=24000Nm=2400=2,
4kJ
29.3 - 14
W=G.s
W=1000N.1.8m
W=18000Nm
W=18000J=18J
29.3 - 15
W=F.s
W=1500N.10000
m
W=15000 KJ
29.3 - 16
NF
mm
mmN
F
r
PF
F
PFrF
ax
ax
16
250..2
5.500
..2
.
...2.







30.1 - a
NF
mm
mmN
F
r
PF
F
PFrF
ax
ax
20
100..2
4.3140
..2
.
...2.







30.1 - b
NF
mm
mmN
F
P
rF
F
rFPF
ax
ax
ax
ax
47100
4
250.2.120
..2.
..2..







30.1 - c
NF
mm
mmN
F
P
rF
F
rFPF
ax
ax
ax
ax
40192
5
200.2.160
..2.
..2..







30.1 - 1
NF
mm
mmN
F
r
PF
F
PFrF
ax
ax
4
240..2
5,1.4000
..2
.
...2.







30.1 - 2
30.2 - 3
Fax*P=F*2Pi*r
P=F*2Pi*r
Fax
P=100N.2Pi.300mm
37680N
P=5mm
30.2 - 4
Fax*P=F*2Pi*r
F=Fax*P
2Pi*r
F= 5000N*3mm
2*3,14*320mm
F=7,46N
30.2 - 5
Fax*240mm=9000N*360mm
Fax=9000N*360mm
240mm
Fax=13500N
Fax*P=F*2Pi*r
F=Fax*P
2Pi*r
F= 13500N*6mm
2*3,14*230mm
F=56N
30.2 - 6
Fax*P=F*2Pi*r
Fax=80N*2Pi*140mm
1,25mm
Fax=56269N
30.2 - 7
Fax*P=F*2Pi*r
Fax=120N*2Pi*27mm
5mm
Fax=40694N
30.2 - 8
2*Fax*P=F*2Pi*r
Fax=F*2Pi*r
2*P
Fax=80N.2Pi.400mm
2,2mm
Fax=50240N

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