A-LevelPhysicsWork, energy and powerOct/Nov 2013Paper 1 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?
A2.5 × 10³ J
B4.3 × 10³ J
C5.0 × 10³ J
D1.0 × 10⁴ J
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The correct answer is A. This question tests the candidate's understanding of work, energy and power within the Physicssyllabus. The examiner's mark scheme requires...
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