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A body of mass 2kg moves 30m aginst a frictional force of 100N. If the work is completely converted into heat, the amount of heat expressed in joules will be?
Dear Vishnu
The work done against friction will be converted into heat
Work done against friction=100 x 30 = 3000 J
Heat=3000 J Answer
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AKASH GOYAL
AskiitiansExpert-IIT Delhi
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force =100N
workdone by friction = f.s = force*displacement
=100*30 =3*103 J
this is the energy which is converted to heat ...
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