1.

What will be the work done by the string when a stone is tied to a string and whirled in a circle ?​

Answer»

ong>Answer:

The WORK done by the STRING will be zero because,thef orce (CENTRIPETAL) and the displacement are perpendicular to each other.

W=F.S.COS theta

W=F.S cos 90°

cos 90°= 0

therefore,W=0.



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