Physics

A 2115 kg car moving east at 10.61 m/s col- lides with a 3169 kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 32.4◦ north of east and at a speed of 5.03 m/s.
What was the speed of the 3169 kg car before the collision?

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  1. original east momentum = 2115*10.61
    final east momentum
    = (2115+3169)*5.03cos32.4

    22440 = 5284 * 4.25 v = 22440 v

    v =1 m/s

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