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A 2kg object moving 3m/s strikes a 1kg object initially at rest. Immediately after the collision, the 2kg object has a velocity of 1.5m/s directed 30° from its initial direction of motion. What is the x and y component of the velocity of the 1kg object just after the collision?

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  1. momentum is conserved. So after the reaction, you have 6kgm/s in x direction total.
    of the two objects, then the y components of momentum must add to zero.
    solve for v'

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