A-LevelPhysicsWork, energy and power9702/12 · Oct/Nov 2013 · Q171 Mark

The diagram shows a barrel of weight 1.0 × 10³ N on a frictionless slope inclined at 30° to the horizontal. [Figure 17.1] A force is applied to the barrel to move it up the slope at constant speed. The force is parallel to the slope. What is the work done in moving the barrel a distance of 5.0 m up the slope?

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A2.5 × 10³ J

B4.3 × 10³ J

C5.0 × 10³ J

D1.0 × 10⁴ J

✓ Correct answer

A: 2.5 × 10³ J

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Topic: Work, energy and power, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2013 Paper 1 Variant 2, question 17.

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