A raindrop of mass 1kg falling from a height of 1km hits the ground at a speed of 50 m/s. Calculate the work done by the gravitational force and (ii) work done by the unknown resistive force.
a) (i) -5000 J, (ii) 0 J b) (i) -5000 J, (ii) 5000 J c) (i) -5000 J, (ii) -5000 J d) (i) 5000 J, (ii) 5000 J
