Mathematics (AS & A Level) · May / June 2022 · Paper 41 · Question 7

Two particles A and B, of masses 0.4kg and 0.2kg respectively, are moving down the same line of greatest slope of a smooth plane. The plane is inclined at 30Å to the horizontal, and A is higher up the plane than B. When the particles collide, the speeds of A and B are 3ms−1 and 2ms−1 respectively. In the collision between the particles, the speed of A is reduced to 2.5ms−1.

Read automatically from the paper; the printed page above is exact.