bjsRosieeshellmeis
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Two people who weigh the same amount climb a flight of stairs. the first person climbs the stairs in 30 s, while the second person climbs them in 40 s. which person does more work? which uses more power?

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cesarsaladx
Work done by each is the same for they reach the same height. The one who climbs in 30s uses more power because work is done in a shorter time.