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Work, Energy And Power

Question

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Two bodies moving towards each other collide and separate. If there is some rise in temperature of the bodies in the process, then what type of collision will it be?

Solution

Given that, there is a rise in temperature. That is, it is an example of an inelastic collision.

Some More Questions From Work, Energy and Power Chapter

What is the relation between kWh and Joule?

Does the body at rest possess energy?

By eating two apples, a person starts pushing the wall of room. If food value of apple is 100 calories per apple, how much work he will do in pushing the wall in one hour?

A man is rowing upstream and is at rest w.r.t. shore. Is he doing work w.r.t. shore?

Is frictional force conservative?

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A mass is tied with a string and whirled in horizontal circle. What is the work done by tension force?

Does the work done by force depend upon the velocity at that instant?

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