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A body of mass 5kg rests on a rough hori...

A body of mass 5kg rests on a rough horizontal surface of coefficient of friction 0.2. The body is pulled through a distance of 10m by a horizontal force of 25N. The kinetic energy acquired by the body is (g= `10ms^(-2))`

Text Solution

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Mass=5kg, s=10m, u=0, F=25N
Resultant force : `F^(.)=F-f_(lui)=25-0.2xx5xxg=15N`
Kinetic energy=workdone by `F^(.)=15xx10=150J`
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