Calculate the momentum of a gun of mass 400 kg when it recoils with a velocity of 0.25 ms-1.

Calculate the momentum of a gun of mass 400 kg when it recoils with a velocity of 0.25 ms-1. Correct Answer 100 kg.ms<sup>-1</sup>

  • Momentum is defined as the product of mass and velocity.
  • Mass of the gun = 400 kg
  • Its recoil velocity is 0.25 ms-1
  • We know that formula momentum (p) = mv
  • Now by substituting the above values we get (p) = 400 × 0.25

 = 100 kg.m/s.

  • The momentum of a gun is 100 kg.ms-1.

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.