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Block 1, of mass m1, moves across a frictionless surface with speed ui . It collides elastically with block 2, of mas...

Block 1, of mass m1, moves across a frictionless surface with speed ui . It collides elastically with block 2, of mass m2, which is at rest (vi = 0). After the collision, block 1 moves with speed uf , while block 2 moves with speed vf . Assume that m1 > m2, so that after the collision, the two objects move off in the direction of the first object before the collision.

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What is the final speed uf of block 1? and block 2?

express both answers uf in terms of m1 m2 and ui

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