swaralee takes 20s to carry a bag weighing 20kg to height of 5m . How much power has she used.
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50 go through the image given
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Answer:
P=24.5 W
Explanation:
m= 20 kg ,h= 5 m, t= 40 s
The force which has to be applied by Swaralee ,
F=mg=20×9.8
F=196 N
Work done by Swaralee to carry the bag to a height of 5 m,
W=F s=196×5=980 J
Power=(p)=work = 980
t 40
P = 24.5 W
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