A simple pendulum of length and bob of mass is displaced from its equilibrium…

PHYSICS · Single correct · CBSE · Physics · Oscillations · Oscillations

Problem

A simple pendulum of length

l

and bob of mass

m

is displaced from its equilibrium position

O

to a position

P

such that the height of

P

above

O

h

. It is then released. What is the tension in the string when the bob passes through the equilibrium position

O

? Neglect friction.

v

is the velocity of the bob at

O

. (1)

m\left(g+\frac{v^2}{l}\right)

(2)

\frac{2mgh}{l}

(3)

mg\left(1+\frac{h}{l}\right)

(4)

mg\left(1+\frac{2h}{l}\right)