In physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity
Explains interaction of forces in non accelerating systems
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
This Unit is rely on introduction to Simple Harmonic Motion. the contents was prepared using the Curriculum of NTA level 4 at Mineral Resources Institute- Dodoma.
Explains interaction of forces in non accelerating systems
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
This Unit is rely on introduction to Simple Harmonic Motion. the contents was prepared using the Curriculum of NTA level 4 at Mineral Resources Institute- Dodoma.
In physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity
In physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity
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In physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity
In physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity
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The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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Lesson-1-Moments.pptx
1. Specification
Moment of a force about a point.
Moment defined as force × perpendicular distance from the point to the line of action of
the force.
Principle of moments.
Moments
6. Question 1
200N x
1.2 m 0.8 m
The sum of the
clockwise moments
The sum of the
anticlockwise moments
=
0.8 X x = 1.2 X 200
0.8 X x = 240
x = 240
0.8 300 N
7. Question 2
2 N W
25 cm 30 cm
45 cm
3 N
The sum of the
clockwise moments
The sum of the
anticlockwise moments
=
30 X W = (3 X 45) + (2 X 25)
30 W = (135) + (50)
30 W = 185
W = 6.17 N
8. Question 3
3 N 6.17 N
25 cm x
45 cm
2 N
The sum of the
clockwise moments
The sum of the
anticlockwise moments
=
x X 6.17 = (2 X 45) + (3 X 25)
6.17x = (90) + (75)
6.17x = 165
26.7 cm
9. Question 4
The sum of the
clockwise moments
The sum of the
anticlockwise moments
=
240 mm
4.5 N
W
160 mm
4.5 X 240 = W X 160
1080 = 160 W
1080 = W
160 6.75 N
11. sum of anticlockwise moments = sum of clockwise moments
43.2 = 0.4 x 100 + 0.55 x W
43.2 = 40 + 0.55W
W = 5.8 N
Moment = perpendicular distance x force
= 1.20 x 36
= 43.2Nm
12. When a body is in equilibrium, the net moment acting on it is zero:
Sum of clockwise moment(s) = sum of anticlockwise moment(s)
14. 429 N
149 N
178 N
weight of child
429 +149 = 179 +W
400 N
d x 400 + 2.5 x 178 = 5 x 149
400d +445 = 745
400d = 745 – 445
400d = 300
d = 300/400
0.75 m
Editor's Notes
Boardworks AS Physics
Moments and Centre of Gravity
Boardworks AS Physics
Moments and Centre of Gravity
Boardworks AS Physics
Moments and Centre of Gravity
Boardworks AS Physics
Moments and Centre of Gravity
