The work done by the string of a simple pendulum in S.H.M is zero.why?
Asked by Alekhya K | 26th Dec, 2013, 02:15: PM
When a bob oscillates, the rstoring force mg sin is always perpendicular to the length of string. So work done by the string is zero.
Answered by | 26th Dec, 2013, 03:54: PM
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