A simple pendulum of length l and bob of mass m is displaced from its equilibrium position O to a position P so that height of P above O is 2 h. It is then released. What is the tension in the string

Question

A simple pendulum of length l and bob of mass m is displaced from its equilibrium position O to a position P so that height of P above O is 2 h. It is then released. What is the tension in the string when the bob passes through O ? Neglect friction.

Options:

Answer:

C

Solution:

$v^{2} = 4 g h and T = m g + \frac{m v ^{2}}{l} = m g (1 + \frac{4 h}{l}) .$

TestHub · Accepted Answer

​ v 2 = 4 g h and T = m g + l m v 2 ​ = m g ( 1 + l 4 h ​ ) . ​

Physics - Circular Motion Question with Solution | TestHub

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