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when the bob of a simple pendulum swings...

when the bob of a simple pendulum swings, the work done by bob in the string is :

A

`gt 0`

B

`lt 0`

C

zero

D

maximum

Text Solution

Verified by Experts

The correct Answer is:
C
Tension in the string is along the radius of circular path adopted by the body , while displacement of the bob is along the circumuforce of the path hence angle b,. Woon `vec F` and `vec s` in always `90^(@)` and to `W = 0`
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