Question

Write two difference between work against friction and work against gravity.​

Answer 1

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if there is not motion produced in body, the works become zero. We can dowork against gravity or against friction. when we lift something then it is workdone against gravity and when we slide something then it is work done against friction..

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Answer 2

Answer:

· Friction and gravity are two of the natural forces that oppose us in almost everything we do. Much work is done against friction or gravity—or against both at the same time. For example, if you pedal a bicycle along a level road, you are working against friction only. When you lift a bicycle straight up to put it in a rack on top of a car, your work is being done mostly against gravity. When you pedal a bicycle up a hill, you are working against both friction and gravity.

Explanation: