anonymous
  • anonymous
a particle of mass 6kg is being pushed across a smooth horizontal plane by a force of 30N acting downwards at 20 degree to the vertical. find the acceleration of the particle and the force the particle exerts on the plane
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
F=ma Fsin20=6a 30sin20=6a a=4.6m/s^2 (acceleration of particle)
anonymous
  • anonymous
Fcos20=force on plane=12N
anonymous
  • anonymous
how do you get Fcos 20 = force on plane = 12N?? i cant understand

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anonymous
  • anonymous
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anonymous
  • anonymous
The x component of the force is Fcos20, which is the force acting on the plane
anonymous
  • anonymous
*oops, meant y component
anonymous
  • anonymous
|dw:1327911796350:dw|

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