O-LevelPhysicsEnergy & Work5054/12 · Oct/Nov 2024 · Q101 Mark

A rocket is launched vertically upwards by a constant force from its engines. The data for the launch is shown. [Table: weight of rocket 1.9 MN, average air resistance 0.10 MN, force from engine 3.5 MN]. How much of the work done on the rocket is used to increase its speed in the first 100 m?

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A150 MJ

B170 MJ

C350 MJ

D550 MJ

✓ Correct answer

A: 150 MJ

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Topic: Energy & Work, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2024 Paper 1 Variant 2, question 10.

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