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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.)
(c) What is the car's change in momentum in (b) (kg m/s)?
(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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