A 45 kg trunk is pushed 78 m at constant speed up a 30deg, Physics

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A 45 kg trunk is pushed 78 m at constant speed up a 30deg

A 45 kg trunk is pushed 7.8 m at constant speed up a 30° incline by a constant horizontal force. The coefficient of kinetic friction between the trunk and the incline is 0.19.

a) Calculate the work done by the applied horizontal force.

b) Calculate the work done by the weight of the trunk.

c) How much energy was dissipated by the frictional force acting on the trunk?

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Physics: A 45 kg trunk is pushed 78 m at constant speed up a 30deg

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