A boy Weigting 35 onl rams up a flight of stairs consisting of 20 step each loom high in to secound what is his power?

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Iortyer2005

6 Mar, 2025

Gboko Polytechnic

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Aliyuus2
1 year ago

Weight=force=350N,Distance=the number of steps times height=20steps*10cm=200cm=2m.POWER OR AVERAGE POWER=Force*velocity.where velocity=displacement/ime.Therefore,Power=F*S/t=350N*2m/10s=700/10=70W

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Assignment ① A mass of 40 kg ascend a flight of Stairs 5m high in 5 seconds if the aclerala-tion due to gravity is locm² the power expended is? (5mark). 2 A boy Weigting 35 on runs up a flight of stairs consisting of 20 step each loom high in to secound what is his power? (5 mark) 3 A brass rod is 2m long at a certain temperature, what is its lenth for a temperature rise of look, If the Linear expansity of brass is 18x1o-bk-(5 mark) 4. The increase in the volume of lo ch³ of mercardy when the temperature rise by lou¿ is 0.182 cm² kluat is the cubic expansivcity of mercury (5 mark?

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