Compute the speed of the wreckage

Reference no: EM13298553

On an icy road, a 1200 kg car moving at 55 km/h strikes a 430 kg truck moving in the same direction at 43 km/h . The pair is soon hit from behind by a 1500 kg car speeding at 55 km/h , and all three vehicles stick together.

Find the speed of the wreckage?

Reference no: EM13298553

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