Question

the following positive ,negative,and zero work:Tying a stone to end of a string and swinging or round and round by the other end of the string


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Answer 1

Explanation:

When a stone is tied to a string and whirled in circle no work is said to be done. The angle between string and tangent of the circle will be 90 degrees and Cos 90 is 0.

Hence work done is zero.

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Answer 2

Answer:

positive work

Explanation:

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