Asked by neha

A 100g bullet is firred from a 10 kg gun with a speed of 1000 m/s.What is the speed of recoil of the gun.
Answered by Anonymous
0=m1v1+MV
MV=-mv
V=-mv/M
=O.1×1000/10
v=-10m/s
Answered by Anonymous
why negative sign?
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