| Exam Board | OCR |
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| Module | M2 (Mechanics 2) |
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| Year | 2006 |
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| Session | June |
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| Topic | Work, energy and Power 1 |
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1 A child of mass 35 kg runs up a flight of stairs in 10 seconds. The vertical distance climbed is 4 m . Assuming that the child's speed is constant, calculate the power output.