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28 March, 23:14

How many students would it take to move 10 teachers, together exerting a force of 50 000N, once around a 400m track. Each students contributes 2000kJ of work.

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  1. 29 March, 02:08
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    Work done = force * distance that is move in direction of force

    workdone = 50000N * 400m

    = 2 * 10^7 J

    since each student contributes 200kJ of work

    no. of students = 2 * 10^7 J / 2000 * 10^3 J

    = 10
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