| Exam Board | OCR MEI |
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| Module | Paper 1 (Paper 1) |
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| Year | 2019 |
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| Session | June |
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| Topic | Non-constant acceleration |
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7 The velocity \(v \mathrm {~ms} ^ { - 1 }\) of a particle at time \(t \mathrm {~s}\) is given by
\(v = 0.5 t ( 7 - t )\).
Determine whether the speed of the particle is increasing or decreasing when \(t = 8\).