in an experiment to measure his power , a student records the time taken by him in running up a flight steps on a staircase. use the following data to calculate the power of the student: number of steps = 28, height of each step = 20cm, time taken= 5.4s, mass of student= 55 kg, acceleration= 9.8 ms-2 due to gravity
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Total height reached by the student = 28*20/100 = 5.6m
Work done by the student = Potential energy stored in him
= m*g*h
=(55*9.8*5.6)J
Power of the student = 55*9.8*5.6/5.4
=558.96 Watt
=559 Watt
Hope that answers your question
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