Consider a drop of rain water having mass 1 g falling from a height of 1 km. 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

A

(i) 100 J (ii) 8.75 J

B

(i) 10 J (ii) -8.75 J

C

(i) -10 J (ii) -8.25 J

D

(i) 1.25 J (ii) -8.25 J