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how much power is used by a 40 kg athlete in climbing a 10 metre high ladder in 10 seconds.... I NEED EXPLANATION. |
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Answer» Explanation: Mass of the athlete = 40kg Weight of the athlete = 40*9.8 N = 392N Height of the LADDER = 10m Formula for work done = Force*DISPLACEMENT = Weight*Displacement (Here weight is the force of gravity acting on the body) Therefore, work done by the athlete against gravity = 392*10 J = 3920J Formula for POWER = Work done/Time taken Therefore, 3920/10 = 392 J Here is your answer. Hope it helps! |
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