Question

A simple pendulum oscillates in a vertical plane. When it passes through the mean position, the
tension in the string is 3 times the weight of the pendulum bob. What is the maximum angular
displacement of the pendulum of the string with respect to the downward vertical
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Answer 1

Answer:

90°

Explanation:

T=3mg (given)

as we know that T=3mg(1+cosA)

so,

3mg=3mg(1+cosA)

1=1+cosA

0=cosA

cos90=cosA

A=90

Hence,maximum displacement of the string of the pendulum wit respect to the vertical will be at an angle of 90 degree