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You have been challenged to lift a weight of 200 kg from the floor.Your challenger has the same task and also lifts a 200 kg fr...Asked by Susie
You have been challenged to lift a weight of 200 kg from the floor.Your challenger has the same task and also lifts a 200 kg from the floor but they take longer time to do so.Who has completed more or less work?Explain.Who has used more power?Why?
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Answered by
bobpursley
WORK IS THE SAME. WORK=MASS*G*HEIGHT
POWER IS LESS ON THE SLOW LIFT
POWER=WORK/TIME
POWER IS LESS ON THE SLOW LIFT
POWER=WORK/TIME