A-LevelPhysicsWork, energy and power9702/12 · May/June 2013 · Q161 Mark

A bow of mass 400g shoots an arrow of mass 120g vertically upwards. The potential energy stored in the bow just before release is 80 J. The system has an efficiency of 28%. What is the height reached by the arrow when air resistance is neglected?

A4 m

B19 m

C187 m

D243 m

✓ Correct answer

B: 19 m

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Topic: Work, energy and power, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2013 Paper 1 Variant 2, question 16.

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