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(a) At what speed (m/s) would a 1140-kg car have the same momentum as a 12,600-kg truck traveling at17.8km/hr?

(b) The car and truck in (a) have a head-on collision and then stick together. What is their nal common velocity (m/s)? (Assume the car is going in the positive direction.)

(d) At what speed would the same car have the same kinetic energy as the truck?

(e) The car and truck in (d) have a head-on collision and then stick together. What is their nal common velocity (m/s)? (Assume the car is going in the positive direction.)

(f) What is the car's change in momentum in (e) (kg m/s)?

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