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A shell of mass $25 g m$ is fired by a gun of mass $75 k g$ . If the muzzle speed of the shell is $150 m s^{- 1}$ , what is the recoil speed of the gun?

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0.12 m/s

0.05 m/s

0.3 m/s

0.4 m/s

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detailed solution

Correct option is B

V=mvM=25×10−3×15075=0.05ms−1

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A shell of mass 25gm is fired by a gun of mass75kg . If the muzzle speed of the shell is150 ms–1 , what is the recoil speed of the gun?

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A shell of mass $25 g m$ is fired by a gun of mass $75 k g$ . If the muzzle speed of the shell is $150 m s^{- 1}$ , what is the recoil speed of the gun?