A person brings a mass of 1 kg from infinity to a point $A$. Initially the mass was at rest but it m

Question

A person brings a mass of 1 kg from infinity to a point $A$. Initially the mass was at rest but it moves at a speed of $2 \mathrm{~m} \mathrm{~s}^{-1}$ as it reaches $A$. The work done by the person on the mass is -3 J . The potential at $A$ in $J\ Kg^{-1}$is

Professor PC Thomas Classes · Answer

Applying WET. Work done by person=$\Delta T.E$=$\Delta K.E$+$\Delta P.E$