A gun after firing recoils due to:
Correct answer: B. Conservation of momentum
- A. Conservation of energy
- B. Conservation of momentum
- C. Backward thrust of gases produced
- D. Newton's first law of motion
Explanation
Recoil arises from conservation of momentum: when the bullet gains forward momentum, the gun acquires equal and opposite momentum backward so the total momentum of the system is conserved.
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About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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