Mathematics (AS & A Level) · Oct / Nov 2022 · Paper 41 · Question 2
9709
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Small smooth spheres A and B, of equal radii and of masses 6kg and 2kg respectively, lie on a smooth horizontal plane. Initially A is moving towards B with speed 5ms−1 and B is moving towards A with speed 3ms−1. After the spheres collide, both A and B move in the same direction and the difference in the speeds of the spheres is 2ms−1. Find the loss of kinetic energy of the system due to the collision. [5]
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