Work, Energy and Power

Question: A heavy steel ball of mass greater than 1 kg moving with a speed of 2$m\,{\sec ^{ - 1}}$collides head on with a stationary ping-pong ball of mass less than 0.1 gm. The collision is elastic. After the collision the ping-pong ball moves approximately with speed

1) $2\,m\,{\sec ^{ - 1}}$

2) $4\,m\,{\sec ^{ - 1}}$

3) $2 imes {10^4}\,m\,{\sec ^{ - 1}}$

4) $2 \times {10^3}\,m\,{\sec ^{ - 1}}$

Solution:

Explanation: No Explanation

WEP Elastic and Inelastic collision

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