WAEC - Physics (2021 - No. 34)
A man weighing 200 N runs up a staircase in 5s. If the height of the staircase is 9 m, calculate the power of the man.
1000 W
360 W
40 W
1800 W
解释
power = \(\frac{force * distance}{time}\) → \(\frac{200 * 9}{5}\)
power = 36w