Question

A simple pendulum of length 'l' and a bob of mass 'm' is executing S.H.M. of small amplitude 'A'. The maximum tension in the string will be ($g =$ acceleration due to gravity)

• A. 2 mg
• B. $mg [1 + (\frac{A}{l})^2]$
• C. $mg [1 + (\frac{A}{l})]^2$
• D. $mg [1 + (\frac{A}{l})]$

Hint:

Physics Tip: Tension is always highest at the bottom of the swing because that is where the weight vector acts directly against the string and the speed (and thus centripetal force) is at its peak.

Answer 1

The Correct Option is B