If in Q . 21 the speed of the stone is increased beyond the maximum permissible value and the string breaks suddenly which of the following correctly describes the trajectory of the stone after the string breaks :
(a) the stone jerks radially outwards
(b) the stone flies off tangentially from the instant the string breaks
(c) the stone flies off at an angle with the tangent whose magnitude depends on the speed of the stone ?

Explanation

The velocity is tangential at each point of circular motion. At the time the string breaks, the particle continues to move in the tangential direction according to Newton's first law of motion .