a bullet of mass 10g fired with a velocity of 60m/s and the mass of gun was 2kg . what will be the recoil velocity of gun
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Given,
A bullet of mass 10g fired with a velocity of 60m/s and the mass of gun was 2kg.
To Find,
The recoil velocity of the gun.
Solution,
1) Bullet
m1 = 10 g = 0.01kg.
u1 = 0
v1 = 60 m/s
2) Gun
m2 = 2 kg
u2 = 0
v2 = (to be found)
We know that,
m1u1 + m2u2 = m1v1 + m2v2
[ As both u1 & u2 are 0, the RHS is as follows]
0 = (0.01 x 60) + (2 x v2)
0 = 0.6 + 2v2
v2 = -0.3 m/s.
Therefore the recoil velocity of the gun is -0.3 m/s.
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