Q.22 a bob of mass m attached with a string of length i tied to a point on ceiling is released from a position when its string is horizontal. at the bottom most

Q.22 A bob of mass m attached with a string of length I tied to a point on ceiling is released from a position when its string is horizontal. At the bottom most point of its motion, an identical mass m genty stuck to it. Find the maximum angle from the vertical to which it rotatesS. (a)cos-1(2 (b) cos-1 (C)cos-1( 4 (d) 60°