Consider a drop of rain water having mass 1g falling from a height of 1km. It hits the ground with a speed of 50m/s. Take 'g' constant with a value 10m/s2. The work done by the (i) gravitational force the (ii) resistive force of airs is:
A. (i)10J, (ii)−8.75J
B. (i)10J, (ii)8.75J
C. (i)100J, (ii)−8.75J
D. (i)1.25J, (ii)−8.75J