Block a, with a mass of 2.0kg, moves along the x axis with a velocity of 5.0m/s in the positive x direction. it su? ers an elastic collision with block b, initially at rest, and the blocks leave the collision along the x axis. if b is much more massive than a, the speed of a after the collision is:
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Block a, with a mass of 2.0kg, moves along the x axis with a velocity of 5.0m/s in the positive x di...
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