In the diagram below a block of mass m46 kg slides down a, Ask an Expert

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In the diagram below, a block of mass M=46 kg slides down a frictionless inclined plane and collides elastically with another block of mass m=25.0 kg. If the mass at the top of the plane is initially at a height of 20.0 m above the horizontal plane, what is the velocity of m after the collision?

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