First slide

Power

Question

The average power required to lift a 100 kg mass through a height of 50 metres in approximately 50 seconds would be (J/s) Take g =9.8m/s²

Easy

Solution

$P = \frac{mgh}{t} = \frac{100 \times 9 .8 \times 50}{50} = 980 J / s$

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