Physics (AS & A Level) · May / June 2020 · Paper 13 · Question 9

The resultant force F on a raindrop of mass m falling vertically with velocity v is given by the equation F = mg – kv^2 where k is a constant and g is the acceleration of free fall. The falling raindrop eventually reaches a constant (terminal) velocity. Which graph shows the variation of the terminal velocity of the raindrop with mass m?

1. Agraph A
2. Bgraph B
3. Cgraph C
4. Dgraph D

As printed in the paper