Question

A pendulum bob is swinging in a vertical plane such that its angular amplitude is less than ${90}^{\circ }$. If at its extreme position, the string is cut, which of the following trajectory is possible for the bob afterwards?

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

Here at the extreme point of the bob, tension in the string and the velocity will also become zero

$\therefore$ When the string is cut, bob is under free fall.

Hence option $C$ represent the correct trajectory of the bob after the string is cut