A boy weighing 350 N climbs up 30 steps, each high in 1 minute. Calculate : 1 ) work done 2) power spent
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Answer:
Work done = 2100J
Power = 35W
Explanation:
Total distance covered in 30 steps
S= 30 x 20 cm = 600 cm = 6 m
Work done by the boy in climbing= Force x distance moved in direction of force.
Work, W= F x S= 350 x 6 =2100 J
Power developed = work done/time taken = 2100J/60s
= 35W
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