| Exam Board | OCR MEI |
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| Module | Paper 1 (Paper 1) |
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| Year | 2020 |
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| Session | November |
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| Topic | Non-constant acceleration |
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9 A particle is moving in a straight line. The acceleration \(a \mathrm {~m} \mathrm {~s} ^ { - 2 }\) of the particle at time \(t \mathrm {~s}\) is given by \(\mathrm { a } = 0.8 \mathrm { t } + 0.5\). The initial velocity of the particle is \(3 \mathrm {~m} \mathrm {~s} ^ { - 1 }\) in the positive \(x\)-direction.
Determine whether the particle is ever stationary.