Physics (AS & A Level) · May / June 2020 · Paper 11 · Question 10
9702Linear momentum and its conservation
A stationary toy gun fires a bullet. Which statement about the bullet and the gun, immediately after firing, is not correct?
- AThe force exerted on the bullet by the gun has the same magnitude as the force exerted on the gun by the bullet.
- BThe force exerted on the bullet by the gun is in the opposite direction to the force exerted on the gun by the bullet.
- CThe gun and the bullet have the same magnitude of momentum.
- DThe kinetic energy of the gun must equal the kinetic energy of the bullet.
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Correct answer: D. The kinetic energy of the gun must equal the kinetic energy of the bullet.
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