The bob of a pendulum of length 980 cm is released from rest with it string making an angle 60^(@) with the vertical. It collides with a ball 20g resting on a smooth horizontal surface at the position of rest of pendulum. If the collision is perfectly elastic, with what velocity will the bob move immediately after the collision ? Mass of the bob is 10g

The bob of a pendulum of length 980 cm is released from rest with it s

1.	The bob of a pendulum of length 980 cm is released from rest with it string making an angle 60^(@) with the vertical. It collides with a ball 20g resting on a smooth horizontal surface at the position of rest of pendulum. If the collision is perfectly elastic, with what velocity will the bob move immediately after the collision ? Mass of the bob is 10g
Answer» `490 CM s^(-1)` `(2)/(3) XX 980 cm s^(-1)` `(980)/(4) cm s^(-1)` `(980)/(3) cm s^(-1)` ANSWER :D