Question

One workman is measured as having a power of 528 W. His weight is 800 N.
He can develop the same power climbing a ladder, whose rungs are 30 cm apart.
How many rungs can he climb in 5 s

Answer 1

Answer:

Explanation:Power = Work / tiime = force * distance / time = mass * gravity * height / time

so 528 = 800 * h / 5

h= 528 * 5 / 800 = 3.3 m

and this is 11 rungs on the ladder.

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