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a crate of mass 27 kg is pushed up a ramp by a person as shown...

a crate of mass 27 kg is pushed up a ramp by a person as shown in the figure below. the person pushes the crate a distance of 17 m as measured along the ramp. assume the crate moves at constant velocity. assume the coefficient of kinetic friction between the crate and the ramp is μk = 0.47. what is the work done by the person as he pushes the crate up the ramp?

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Answer #1

W = F * d
F = Weight of the crate + friction
W = m*g*16
W = (27*sin 30 *9.8 + 0.47)17
W = 2257.09 Nm

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