A man weighing 600 N carries a load of 150 N up to a height of stairs 6m high in 15 seconds. His power will be:

Foundation

Physics Foundation

Work Power Energy

Force and Newtons Law of Motion

Question

A man weighing 600 N carries a load of 150 N up to a height of stairs 6m high in 15 seconds. His power will be:

300 W

290 W

350 W

200 W

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$Power = \frac{Work}{Time} = \frac{Force \times displacement}{Time}$
$= \frac{weight of (man + load) \times 6}{15}$
$= \frac{(600 + 150) \times 6}{15} = \frac{750 \times 6}{15} = 300 Watt$