Question
A 110.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 35.0 deg with the horizontal. Find the magnitude of the applied force F.
Answers
drwls
(component of the force in the direction of motion)*(distance moved, L) = Work = (Increase in potential energy)
F*cos35*L = M*g*L*sin 35
F = M g tan35 = 755 N
F*cos35*L = M*g*L*sin 35
F = M g tan35 = 755 N
Anonymous
A man pushes on a piano with mass 150 so that it slides at constant velocity down a ramp that is inclined at 14.7 above the horizontal floor. Neglect any friction acting on the piano.