| Exam Board | OCR MEI |
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| Module | Paper 1 (Paper 1) |
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| Year | 2021 |
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| Session | November |
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| Topic | Motion on a slope |
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12 A box of mass \(m \mathrm {~kg}\) slides down a rough slope inclined at \(15 ^ { \circ }\) to the horizontal. The coefficient of friction between the box and the slope is 0.4 . The box has an initial velocity of \(1.2 \mathrm {~m} \mathrm {~s} ^ { - 1 }\) down the slope.
Calculate the distance the box travels before coming to rest.