A ball of mass m moving horizontal at a speed 'v' collides with the bob of a simple pendulum at rest. The mass of the bob is also m.

A ball of mass m moving horizontal at a speed 'v' collides with the bo

1.	A ball of mass m moving horizontal at a speed 'v' collides with the bob of a simple pendulum at rest. The mass of the bob is also m.
Answer» If the COLLISION is inelastic, the height to which the two balls rise after the collision is `v^(2)//8g` If the collision is inelastic, the kinetic ENERGY of the system IMMEDIATELY after the collision BECOMES half of that before collision. If the collision is perfectly elastic, the BOB of the pendulum will rise to a height of `v^(2)//2g` If the collision is perfectly elastic, the kinetic energy of the system immediately after the collision is equal to that before collision. Answer :A::B::C