Physics (AS & A Level) · Oct / Nov 2025 · Paper 11 · Question 12
9702Momentum and Newton’s laws of motion
A rocket has a weight of W and an initial acceleration of a as the rocket leaves the ground vertically. The acceleration of free fall is g. Which expression gives the initial upward force exerted on the rocket due to the engine?
- AWa/g + W
- BWa/g
- CWa/g – W
- DWa + W
As printed in the paper
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Correct answer: A. Wa/g + W
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