A small ball B of mass m is suspended with light inelatic string of length L from a block A of same mass m which can move on smooth horizontal surface.The ball is displaced by an angle θ from equilibrium position and then released.
1. The displacement of the block when ball reaches the equilibrium position is_____
2. Tension in the string when it is vertical is________
3. Maximum velocity of block during subsequent motion of the system after release of ball is_________