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?

5 years ago
OpenStudy (anonymous):

Use the formula V(gun) * M(gun) = V(bullet) * M(bullet)

5 years ago
OpenStudy (underhill):

This is what JamesJ meant when he advised you to use the conservation of momentum.

5 years ago
OpenStudy (anonymous):

i got 81.25 for my answer

5 years ago
OpenStudy (anonymous):

yes thats the answer

5 years ago
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