Physics (AS & A Level) · Feb / March 2018 · Paper 12 · Question 7

A stone of mass m is dropped from a tall building. There is significant air resistance. The acceleration of free fall is g. When the stone is falling at a constant (terminal) velocity, which information is correct? | | magnitude of the acceleration of the stone | magnitude of the force of gravity on the stone | magnitude of the force of air resistance on the stone | |---|---|---|---| | A | g | zero | mg | | B | zero | mg | mg | | C | zero | zero | mg | | D | zero | mg | zero |

1. Ag, zero, mg
2. Bzero, mg, mg
3. Czero, zero, mg
4. Dzero, mg, zero

As printed in the paper