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[3] 70 mph (31 m/s)? [3]

[3] 70 mph (31 m/s)? [3]

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10) A car of mass 1,850 kg has an engine that delivers an average power of 220 horse power during the time the car accelerates up to a speed of 70 mph (31 m/s). Neglect the energy lost to friction and air resistance in your answers below. a) What is the average power provided the car during the acceleration in Watts? [1. b) If the car started from rest, what is the car's final kinetic energy? [3] c) How long did it take for the car to accelerate to 70 mph (31 m/s)? [3], d) If the power was constant, did the car accelerate [at a decreasing acceleration with increasing speed, at a constant acceleration, or at an increasing acceleration with increasing speed] ? [1].
Transcribed Image Text:10) A car of mass 1,850 kg has an engine that delivers an average power of 220 horse power during the time the car accelerates up to a speed of 70 mph (31 m/s). Neglect the energy lost to friction and air resistance in your answers below. a) What is the average power provided the car during the acceleration in Watts? [1. b) If the car started from rest, what is the car's final kinetic energy? [3] c) How long did it take for the car to accelerate to 70 mph (31 m/s)? [3], d) If the power was constant, did the car accelerate [at a decreasing acceleration with increasing speed, at a constant acceleration, or at an increasing acceleration with increasing speed] ? [1].
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