The bob of a pendulum of length 980 cm is released from rest with its string making an angle `60^(@)` with the vertical. It collides with a ball of mass 20 gm resting on a smooth horizontal surface just at the position of rest of the pendulum. With what velocity will the bob move immediately after the collision? What will be the maximum angular displacement of the bob after them collision ? The mass of the bob is 10 gm. '

Answer

`[980//3 cm//s]`