A heavy steel ball of mass greater than 1kg moving with a speed of 2m/s collides head on with a stationary ping-pong ball of mass less than 0.1gm. The collision is elastic. After the collision the ping pong ball moves approximately with speed of

A heavy steel ball of mass greater than 1kg moving with a speed of 2m/

1.	A heavy steel ball of mass greater than 1kg moving with a speed of 2m/s collides head on with a stationary ping-pong ball of mass less than 0.1gm. The collision is elastic. After the collision the ping pong ball moves approximately with speed of
Answer» 2m/s 4m/s `2 XX 10^(4) m//s` `2 xx 10^(3) m//s` Answer :B