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Fisik
Fisik
Fisik
Fisik
Fisik
Fisik
Fisik
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Fisik

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  • 1. EJERCICIO DE FISICAVECTORESPOR: katyajanyVasquezJuan Camilo VelasquezCarlos VivasMichael Restrepo 10-4Presentado a: Solangel Patiño<br />
  • 2. Una persona sostiene una caja de 100kg de masa a través de una cuerda; si la caja esta sobre una rampa inclinada 30º. ¿Cuál es la tensión de la cuerda si el coeficiente de rozamiento es 0,1.<br />
  • 3. GRAFICA<br />
  • 4. SOLUCION<br />DATOS:<br />m= 100kg<br />μ= 0,1Nw<br />Fx= Fy=<br /> Fr N<br /> -T -w cos 30º<br /> W sen 30º<br />
  • 5. ΣFx= m*a<br />Fr+(-T)+W sen 30º = m*a<br />(N * μ)+(-T)+(m*g) 0,5= 100 kg * 0<br />(N * 0,1)+(-T)+(100kg*10mt/sg2)0,5=0<br />(N*0,1)+(-T)+(1000Nw)0,5=0<br />(N+0,1)+(-T)+500Nw=0<br />T=(N+0,1)+500Nw<br />
  • 6. ΣFy=m*a<br />N+(- w )cos 30º = m*a<br />N+(-m*g)0,86=100kg*0<br />N+(-100kg*10mt/sg2)0,86=0<br />N+(-1000Nw)0,86=0<br />N-860Nw=0<br />N=860Nw<br />
  • 7. T=(N*0,1)+500Nw<br />T=(860Nw*0,1)+500Nw<br />T=86Nw+500Nw<br />T=586Nw<br />

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