A 20kg box has an inital velocity of 20 m/s to the right. A person applies a force of 200N to the left. Friction does -500J of work. Calculate the final velocity of the box after it has traveled 4 meters.

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A: Here, we ue work and energy theorum and Newton's second law to get the required.

Q: A sled of 150 kg mass moves along a smooth horizontal surface at 7 m/s. The sled encounters a rough…

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Q: A 30kg box has an initial velocity of 10m/s to the right. A person applies a force of 300N to the…

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Q: A 30 kg box has an initial velocity of 10 m/s to the right. A person applies a force of 300 N to the…

A:

Q: (a) What is its kinetic energy at this moment? (b) Find the net work done on the object if its…

A: Please refer below page.If you have any doubts please feel free to ask.Explanation:Step 1: Step 2:

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