kenken3788 kenken3788

26-03-2024
Physics

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A 2000 kg truck moving at 90 m/s elastically collides with an 800 kg car moving at 40 m/s. After the collision, the truck’s speed is 65 m/s. What is the car’s new speed?
a) 15 m/s
b) 20 m/s
c) 25 m/s
d) 30 m/s

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