A-LevelPhysicsWork, energy and power9702/12 · May/June 2011 · Q191 Mark

A hammer with 10 J of kinetic energy hits a nail and pushes it 5.0 mm into a plank. Both the hammer and nail come to rest after the collision. What is the average force that acts on the nail while it moves the 5.0 mm?

A0.050 N

B2.0 N

C50 N

D2000 N

✓ Correct answer

D: 2000 N

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Topic: Work, energy and power, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2011 Paper 1 Variant 2, question 19.

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