What would be the momentum of the bullet and the gun before firing?

What would be the momentum of the bullet and the gun before firing? Correct Answer <font style="vertical-align: inherit;"><font style="vertical-align: inherit;">The momentum of the bullet and the gun before firing would be zero</font></font>

The correct answer is The momentum of the bullet and the gun before firing would be zero.

  • Before firing, the gun and the bullet are both at rest, so the momenta (mv) of the gun and the bullet are both zero.
  • Hence, the total momentum of the system before the bullet is fired is zero. So, option 1 is correct.

Important Points

  • Momentum:
    • It is the property of a moving body and is defined as the product of mass and velocity of the body.
    • SI unit is kgm/s.

Related Questions

Statement I When a gun is fired, i.e. it placing pushes back with much less velocity than the velocity of the bullet.
Statement II Velocity of the recoiling gun is less because the gun is much heavier than bullet.
According to the Principle of conservation of momentum when the gun is fired, momentum of gun and bullet system remains constant.