A 50-mg railroad car moving with a velocity of 3 kmh is to

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A 50-Mg railroad car moving with a velocity of 3 km/h is to be coupled to a 30-Mg cae which is at rest determine

(a) The final velocity of the coupled cars.

(b) The average impulsive force acting on each car if the coupling is completed in 0.4 s.

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A 50-mg railroad car moving with a velocity of 3 kmh is to : a 50-mg railroad car moving with a velocity of 3 kmh is to be coupled to a 30-mg cae which is at rest determinea the

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