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Physics (AS & A Level) · Oct / Nov 2024 · Paper 12 · Question 18

9702Gravitational potential energy and kinetic energy

A barrel of mass 50 kg is loaded onto the back of a lorry 1.6 m high by pushing it up a frictionless plank 3.4 m long. What is the minimum work done?

  1. A80 J
  2. B170 J
  3. C780 J
  4. D1700 J

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Correct answer: C. 780 J

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