Mathematics (AS & A Level) · May / June 2020 · Paper 43 · Question 1
9709
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Particles P of mass m kg and Q of mass 0.2 kg are free to move on a smooth horizontal plane. P is projected at a speed of 2 m s−1 towards Q which is stationary. After the collision P and Q move in opposite directions with speeds of 0.5 m s−1 and 1 m s−1 respectively. Find m. [3]
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