What would be the relation between velocities of gun and bullet, if the mass of gun is more than the mass of bullet?

Velocity of gun is higher than the velocity of bullet

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Velocity of bullet is higher than the velocity of gun

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Velocity of gun = velocity of bullet

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None of the above

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Solution

The correct option is B
Velocity of bullet is higher than the velocity of gun

The conservation of momentum can be applied in case of the firing. If the momentum is constant, then mass is inversely related with the velocity.

p = m x v

v = $\frac{p}{m}$

In this case mass of bullet is less than the mass of the gun, so the velocity of gun is less than the velocity of the bullet.

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