What is the decrease in kinetic energy during the collision

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Reference no: EM13552521

A 2120 kg car moving east at 10.7 m/s collides with a 3240 kg car moving east. The cars stick together and move east as a unit after the collision at a velocity of 6.48 m/s.

a) what is the velocity of the 3240 kg car before the collision?
b) what is the decrease in kinetic energy during the collision?

Reference no: EM13552521

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