Question

• 2-50 Consider a 2100-kg car cruising at constant speed of 70 km/h. Now the car starts to pass another car by accelerating to 110 km/h in 5 s. Determine

the additional power needed to achieve this acceleration. What would your answer be if the total mass of the car were only 700 kg? Answers: 117 kW, 38.9 kW

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