A 40 N force is used to pull a block, starting from rest at point A, up an incli

Question

A 40 N force is used to pull a block, starting from rest at point A, up an incline for a 10mi distance to point B as shown in the figure. The force is parallel to the incline and the mass of the block is 5kg. Suppose that the incline is frictionless,

A) What is the work done by the gravitation force? What is the work done by the force F?

B) What is the block's kinetic energy at point B?

Now suppose that there is friction between the block and the incline and that the speed of the block at point B is 5m/s,

C) What is the work done by friction?

Explanation / Answer

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