Test Academy | A car of mass 400kg and travelling at 72 kmph crashes into a truck of mass 4000kg and travelling at 9 kmph, in the same direction. The car bounces back at a speed of 18 kmph. The speed of the truck after the impact is 9 kmph, 18 kmph, 27 kmph, 36 kmph

Question

A car of mass 400kg and travelling at 72 kmph crashes into a truck of mass 4000kg and travelling at 9 kmph, in the same direction. The car bounces back at a speed of 18 kmph. The speed of the truck after the impact is

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9 kmph
18 kmph
27 kmph
36 kmph

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