Calculate the work done by a boy in lifting a 10 kg laptop from the ground and keeping it on a shelf 1.5 m high
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Answered by
45
workdone=10*1.5 we will get 15 joule
Answered by
17
it's work done is zero because
WD=f×displasement×cos theta
and here tetha = 90 and
cos 90=0
WD=f×displasement×cos theta
and here tetha = 90 and
cos 90=0
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