A block of mass 5 kg is being raised vertically upward by the help of a string attached to it. It rises with an acceleration of $2m/s^2$. The block rises by 2.5 m .the work done by tension and work done against gravity are respectively

Question

\[(a)\;147.5\;J,-122.5\;J \quad (b)\;122.5\;J,-147.5\;J \quad (c)\;95.5\;J,20.5\;J \quad (d)\;25\;J,-25\;J\]