Question
A heavy steel ball of mass greater than 1 kg moving with a speed of 2 m sec−1collides 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
Answer: Option B
:
B
We know that when heavier body strikes elastically with a lighter body then after collision lighter body will move with double velocity that of heavier body.i.e.the ping pong ball move with speed of 2×2=4m/s
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:
B
We know that when heavier body strikes elastically with a lighter body then after collision lighter body will move with double velocity that of heavier body.i.e.the ping pong ball move with speed of 2×2=4m/s
Was this answer helpful ?
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