Physics (AS & A Level) · Oct / Nov 2023 · Paper 13 · Question 10

An object X of mass 0.30 kg is travelling in a straight line at a constant velocity of 3.0 m s⁻¹ on a horizontal frictionless surface. Object X collides with a stationary object Y of mass 0.50 kg. After the collision, X moves with a velocity of 2.0 m s⁻¹ at an angle of 60° to its direction before the collision. Object Y moves with a velocity v at an angle of 41° to the direction of X before the collision, as shown. What is the value of v?

1. A0.80 m s⁻¹
2. B1.2 m s⁻¹
3. C1.6 m s⁻¹
4. D1.8 m s⁻¹

As printed in the paper