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A car moving along a horizontal road, due east at 10 m/s, collides at an intersection with another car of twice the mass that

A car moving along a horizontal road, due east at 10 m/s, collides at an intersection with another car of twice the mass that was moving at 18 m/s due south. What is the velocity and direction (specify angle) of the entangled wreckage immediately after collision?

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