A-LevelPhysicsWork, energy and power9702/12 · Oct/Nov 2017 · Q161 Mark
A ball of mass m is thrown up to height h in air with an initial velocity v, as shown. [Figure showing a ball thrown upwards from P to Q, reaching height h with initial velocity v] Air resistance is negligible. The acceleration of free fall is g. What is the total work done by the gravitational force on the ball during its flight from P to Q?
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.
Azero
B1/2 mv²
Cmgh
D2mgh
✓ Correct answer
A: zero
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