1a calculate the kinetic energy of a 1104-kg car moving at, Ask an Expert

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1)(a) Calculate the kinetic energy of a 1104-kg car moving at 50 km/h. (MJ)

(b) If friction (rolling friction and air drag) results in a retarding force of 321 N at a speed of 50 km/h, what is the minimum energy needed to move the car a distance of 283 m at a constant speed of 50 km/h? (kJ)

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