A-LevelPhysicsWork, energy and power9702/12 · Oct/Nov 2015 · Q161 Mark
A car of mass 500 kg is at rest at point X on a slope, as shown. The car's brakes are released and the car rolls down the slope with its engine switched off. At point Y the car has moved through a vertical height of 30 m and has a speed of 11 ms⁻¹. [Figure showing a car on a slope moving from X to Y]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A3.0 × 10⁴ J
B1.2 x 10⁵ J
C1.5 × 10⁵ J
D1.8 × 10⁵ J
✓ Correct answer
B: 1.2 x 10⁵ J
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