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 is 1 m s^(-1). What is the trajectory of the bob if the string is cut when the bob is (a) at one of its extreme positions, (b) at its mean position.

A bob of mass 0.1 kg hung from the ceiling of a room by a string 2 m l

1.	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 is 1 m s^(-1). What is the trajectory of the bob if the string is cut when the bob is (a) at one of its extreme positions, (b) at its mean position.
Answer» Solution :(a) At the extreme position, the speed of the bob is zero. If the string is cut, ITWILL fall vertically DOWNWARDS. (b) At the mean position, the bob has a HORIZONTAL velocity. If the string is cut, it will fall ALONG a PARABOLIC path.