A pendulum bob swings along a circular path on a smooth inclined plane as shown in figure, where `m=3kg`, `l=0.75m`, `theta=37^@`. At the lowest point of the circle the tension in the string is `T=274N`. Take `g=10ms^-2`.

The tension in the string at the highest position is

Options

A. (a) `166N`
B. (b) `67.66N`
C. (c) `68N`
D. (d) `152N`

Answer

A

Explanation

`T_H+mg sin 37^@=(mv_H^2)/(l)impliesT_H=166N`