Consider a drop of rain water having mass 1 g falling from a height of 1km. It hits the ground with a speed of 50 m/s. Take 'g' constant with a value $10 m/s^2$ . The work done by the (i) gravitational force and the (ii) resistive force of air is:

Question

$\begin{array}{1 1} (1) (i) -10\;J \qquad (ii) -8.25\;J \\ (2) (i) 1.25\;J \qquad (ii) -8.25\;J\\ (3) (i)100\;J \qquad (ii) 8.75\;J \\ (4) (i)10\;J \qquad (ii) -8.75\;J \end{array} $