Physics (AS & A Level) · Feb / March 2023 · Paper 22 · Question 4

Two blocks slide directly towards each other along a frictionless horizontal surface, as shown in Fig. 4.1. The blocks collide and then move as shown in Fig. 4.2. X Y BEFORE COLLISION 0.37 kg m s–1 0.65 kg m s–1 X Y AFTER COLLISION 0.13 kg m s–1 Fig. 4.1 Fig. 4.2 Block X initially moves to the right with a momentum of 0.37 kg m s–1. Block Y initially moves to the left with a momentum of 0.65 kg m s–1. After the blocks collide, block X moves to the left back along its original path with a momentum of 0.13 kg m s–1. Block Y also moves to the left after the collision.

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