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18 March, 05:18

Den pushes a desk 400 cm across the floor. He exerts a force of 10 N for 8 s to move the desk.

What is his power output? (Power: P = W/t)

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  1. 18 March, 07:04
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    P = Work done / time

    Distance pushed = 400cm = 400/100 = 4 m. Force F = 10 N.

    = (10N * 4 m) / 8s

    = 5 Watts.
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