Mathematics (AS & A Level) · May / June 2026 · Paper 42 · Question 2
9709
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The question as text
Two particles, A and B, of masses 2.5 kg and 3.5 kg respectively are at rest on a straight smooth horizontal track. Particle B is situated 9 m from a vertical wall which is fixed at right angles to the track. Particle A is projected directly towards B with a speed of 3 m s 1 - . In the subsequent motion, A collides and coalesces with B to form particle C. Particle C then collides directly with the wall and rebounds. The collision of C with the wall reduces the speed of C by 25%.
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2(a)[2]
2(b)[2]
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