A bob of mass 0.1 kg hung from the ceiling of a room by a string 2 m long is set into oscillation The speed of the bob at its mean position ` 1 m//s ` What is the trajectory of the bob if the string is cut when the bob is (a) at one of its extreme position (b) at is mean position ?

Explanation

Let the bob the oscillating as shown in the figure .
(a) When the bob is at its extreme position (say B), then its velocity is zero. Hence on cutting the string the bob will fall