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How much power is required for a 100 kg woman to climb a ladder 10 meters in height in 10 seconds?
Wiki User
∙ 11y ago
When she reaches the top of the ladder, her potential energy has increased by
M G H = (100) (9.8) (10) = 9,800 joules.
Spread over 10 seconds, her potential energy increases at the rate of 980 watts.
She has to work at at least that rate plus more, since muscular activity is never 100% efficient.
By the way, this is a very fast climb. It might not be obvious from any of the numbers
discussed so far. But consider that 980 watts is 1.32 horsepower, which is a mighty
effort for any human being. Of course, being a 100-kg (220-lb) woman, she may well
be accustomed to it.
Wiki User
∙ 11y ago
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A 10 meter ladder is leaning against a building The bottom of the ladder is 5 meters from the building How many meters high is the top of the ladder?
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How much time is required for a bicycle to travel 100 meters at an average distance of 2 meters per second?
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