O-LevelPhysicsEnergy & Work5054/11 · Oct/Nov 2016 · Q81 Mark

A workman rolls a barrel of weight 2000 N up a plank of length 2.0m and onto a lorry. The back of the lorry is 0.80 m above the horizontal surface of the road. What is the work done on the barrel against gravity?

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A1000 J

B1600 J

C2500 J

D4000 J

✓ Correct answer

B: 1600 J

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Topic: Energy & Work, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2016 Paper 1 Variant 1, question 8.

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