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A man whose mass is 50kg …

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A man whose mass is 50kg climbs up 30steps of a stair in 30 seconds if the power is 100 w how much high is each steps
  • 2 answers

Nirmal Choudhary 5 years, 7 months ago

500 Newton

Yogita Ingle 5 years, 7 months ago

mass = 50kg
time taken = 30 sec
steps =30
each height =20cm =0.2m
so, the total height = 6m
now, power =work / time ...(1)
work = force * distance ...(2)
and force = weight = mg = 50kg * 10m/s² = 500 N ...(3)
now, putting the value of (2) and (3) in (1)
power = 500 * 6 / 30
power = 3000 / 30
∴power = 100 W

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