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QUESTION
In a perfectly elastic collision, a truck with a mass of 5000 kilograms slams into a stationary car of 1000 kilograms.
In a perfectly elastic collision, a truck with a mass of 5000 kilograms slams into a stationary car of 1000 kilograms. The two vehicles stick together after the collision and are moving together with a speed of 10 m/s. What was the speed of the truck before the collision?
