| Exam Board | AQA |
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| Module | M2 (Mechanics 2) |
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| Year | 2013 |
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| Session | June |
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| Topic | Work, energy and Power 1 |
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7 A train, of mass 22 tonnes, moves along a straight horizontal track. A constant resistance force of 5000 N acts on the train. The power output of the engine of the train is 240 kW .
Find the acceleration of the train when its speed is \(20 \mathrm {~ms} ^ { - 1 }\).