A ball of mass `m=200gm` is suspended from a point `A` by an inextensible string of length `L`. Ball is drawn to a side and held at same level as `A` but at a distance `(sqrt(3))/(2)L` from `A` as shown. Now the ball is released. Then `: (` assume string applies only that much jerk which is required so that velocity along string becomes zero `) `.

Two balls of masses m_(1)=100 g and m_(2)=300 g are suspended from point A by two equal inextensible threads, each of length l=32/35m . Ball of mass m_(1) is drawn aside and held at the same level as A but at a distance (sqrt(3)/2)l from A , as shown in Fig. When ball m_(1) is released, it collides elastically with the stationary ball of mass m_(2) . Velocity u_(1) with which the hall of mass m_(1) collides with the other ball is

Two balls of masses m_(1)=100 g and m_(2)=300 g are suspended from point A by two equal inextensible threads, each of length l=32/35m . Ball of mass m_(1) is drawn aside and held at the same level as A but at a distance (sqrt(3)/2)l from A , as shown in Fig. When ball m_(1) is released, it collides elastically with the stationary ball of mass m_(2) . The maximum rise of centre of mass of the ball of mass m_(2) is

A uniform rod of length 3L and mass m is suspended from a horizontal roof by two strings of length L and 2L as shown. Then the tension in the left string of length L is :

A small ball of mass 100 g is attached to a light and inextensible string of length 50 cm . The string is tied to a support O and the mass m released from point A which is a' a horizontal distance of 30cm from the support. Calculate the speed of the ball is its lowest point of the trajectory.

A ball of mass M is rotating in a conical pendulum by a string of length L . If radius of circular path is L/sqrt(2) , find the velocity of mass

A string of length L and mass M hangs freely from a fixed point. Then the velocity of transverse waves along the string at a distance x from the free end is