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A gun fires a small bullet with kinetic energy $K$. Then kinetic energy of the gun while recoiling is
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Verified Answer
The correct answer is:
less than $K$
After firing, the momentum of gun and bullet is same. Therefore, by the relation,
$K=\frac{p^{2}}{2 m}$, we have
$K \propto \frac{1}{m} \quad$ (as $p$ is same)
Hence, as the mass of gun is greater, its kinetic energy will be less.
$K=\frac{p^{2}}{2 m}$, we have
$K \propto \frac{1}{m} \quad$ (as $p$ is same)
Hence, as the mass of gun is greater, its kinetic energy will be less.
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