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  4. A body of mass 10 kg initially at rest acquires velocity 10 ms-1. What is the work done

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Q. A body of mass 10 kg initially at rest acquires velocity $10 ms^{-1}$. What is the work done

BHUBHU 2008Work, Energy and Power

Solution:

By work-energy theorem
$W =\Delta K=\frac{1}{2}\times 10\times (10)^2 -0$
=500 J