Physics (AS & A Level) · Feb / March 2023 · Paper 12 · Question 17

A projectile of mass 0.25 kg is at a height of 30 m above horizontal ground and travelling at a speed of 15 m s^-1. A short time later, it is at a height of 35 m above the horizontal ground and travelling at a speed of 5.0 m s^-1. How much work is done against air resistance during this time?

1. A0 J
2. B13 J
3. C25 J
4. D37 J

As printed in the paper