Homework Help: physics

Posted by jacquie on Tuesday, December 7, 2010 at 4:16pm.

a 2191 kg car moving east at 9.9 m/s collides with a 3221 kg car moving north. the cars stick together and move as a unit after the collision, at an angle of 37.5 north of east at a speed of 5.05 m/s. what is the speed of the 3221 kg car before the collision?

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