A 2.74 kg block is pushed 1.41 m up a vertical wall with constant speed by a con

Question

A 2.74 kg block is pushed 1.41 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of 66.3o with the horizontal. The acceleration of gravity is 9.8 m/s2. If the coefficient of kinetic friction between the block and wall is 0.415, find the work done by F. Answer in units of J.

A 2.74 kg block is pushed 1.41 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of 66.3 degree with the horizontal. The acceleration of gravity is 9.8 m/s2. If the coefficient of kinetic friction between the block and wall is 0.415, find the work done by F. Answer in units of J.

Explanation / Answer

mg=0.415Fsin66.3

we can find F

now w=0.415Fsin66.3*d

using value of F we can find w

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