Q.if a worker is holding a box of mass 200 kg to a height of 2 m for 10 s, what is the work done by the worker?
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Answer:
M = 20 kg
h = 1 m
Work done against gravitational force,
W = mgh
= 20 x 9.8 x 1
= 196 J
Step-by-step explanation:
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Answer:
m=10kg
m=10kgh=2m
m=10kgh=2mg=9.8m/s
m=10kgh=2mg=9.8m/s 2
m=10kgh=2mg=9.8m/s 2
m=10kgh=2mg=9.8m/s 2 Work done, W=mgh
m=10kgh=2mg=9.8m/s 2 Work done, W=mghW=10×9.8×2=196
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