(Solution) - While driving one expects to spend more energy accelerating tha -(2025 Original AI-Free Solution)

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While driving, one expects to spend more energy accelerating than driving at a constant speed.
(a) Neglecting friction, calculate the energy required to give a 1200-kg car a speed of 50 km/h.
(b) If friction results in a retarding force of 300 N at a speed of 50 km/h, what is the energy needed to move the car a distance of 300 m at a constant speed of 50 km/h?
(c) Assuming that the energy losses due to friction in part (a) are 75% of those found in part (b), estimate the ratio of the energy consumption for the two cases considered.