Physics (AS & A Level) · May / June 2023 · Paper 12 · Question 9

A box in air slides with increasing speed down a rough slope from point P to point Q. The slope surface exerts a constant frictional force on the box. As the box moves from P to Q, there are changes to the magnitudes of its acceleration and the total resistive force acting on it. Which row describes the changes?

1. Amagnitude of acceleration increases; magnitude of total resistive force decreases
2. Bmagnitude of acceleration decreases; magnitude of total resistive force decreases
3. Cmagnitude of acceleration increases; magnitude of total resistive force increases
4. Dmagnitude of acceleration decreases; magnitude of total resistive force increases

As printed in the paper