a bullet of mass 20 g is fired from a refile of 8 kg mass with a velocity of 100m/s .the velocity of recoil of the refile is
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= m1 v1 = M2V2
= 20/1000 × 100 = 8 × V2
= 2 = 8 × V2
= V2 = 2/8 m/s
= V2 = 1/4 = 0.25 m/s
Therefore, the velocity of recoil of the refile is 0.25 m/s
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