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OpenStudy (anonymous):
A shell of mass 0.020 kg is fired by a gun of mass 100kg .If the muzzle speed of the shell is 80 m/s, what is the recoil speed of the gun?
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OpenStudy (anonymous):
use momentum conservation total momentum of system b4 and after firing system=gun+bullet
OpenStudy (callisto):
@salini Is it like this? 0 = 0.02 (80) +100 (v) and solve for v?
OpenStudy (anonymous):
yes u will get velocity of gun as -ve (opposite to bullets velocity direction)
OpenStudy (callisto):
Yup!
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