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OpenStudy (anonymous):
A bullet of mass 0.65kg is fired from a 4.0kg gun with a speed of 5.0x10^2 ms^-1. What is the recoil velocity of the gun?
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OpenStudy (anonymous):
Use the formula V(gun) * M(gun) = V(bullet) * M(bullet)
OpenStudy (underhill):
This is what JamesJ meant when he advised you to use the conservation of momentum.
OpenStudy (anonymous):
i got 81.25 for my answer
OpenStudy (anonymous):
yes thats the answer
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