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January 26, 2015

January 26, 2015

Posted by **KIKI** on Wednesday, November 16, 2011 at 7:50pm.

the answer is (a)6.67m/s (b)111km/s^2

The muzzle velocity of 50g shell leaving a 3kg rifle 400m/s(a)What is the recoil velocity of the rifle?(b)If the bullet travel 72cm before leaving the end of the barrel, at what rate what the bullet accelerated?

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