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 5 `m//s`.Take g constat with a vlaue of 10 `m//s^(2)`. The work donw by the (i) gravitational froce and the (ii) resistive force of air is

Options

A. (i) 10J, (ii) -8.75 J
B. (i) -10 J, (ii) -8.25 J
C. (i) 1.25 J, (ii) -8.25 J
D. (i) 100 J, (ii) 8.75 J

Answer

A