Physics (AS & A Level) · Feb / March 2022 · Paper 12 · Question 7

A single horizontal force F is applied to a block X which is in contact with a separate block Y, as shown. The blocks remain in contact as they accelerate along a horizontal frictionless surface. Air resistance is negligible. X has a greater mass than Y. Which statement is correct?

1. AThe acceleration of X is equal to force F divided by the mass of X.
2. BThe force that X exerts on Y is equal to F.
3. CThe force that X exerts on Y is less than F.
4. DThe force that X exerts on Y is less than the force that Y exerts on X.

As printed in the paper