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CBSE Class 9 Answered

from a rifle of mass 4kg, a bullet of mass 50g is fired with an initial velocity of 35m/s. calculate the initial recoil velocity of the rifle.
Asked by SHERIL SINGH | 12 Sep, 2010, 11:26: AM
answered-by-expert Expert Answer
Since no external force acts on the rifle, the change in momentum is zero.
Mometum of rifle = Momentum of bullet.
4 x V = 0.050 x 35
V = 0.44 m/s.
This is the recoil velocity of rifle.
Regards,
Team,
TopperLearning.
Answered by | 12 Sep, 2010, 01:48: PM

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