MCAT Physics Question 18: Answer and Explanation
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Question: 18
3. A 2000 kg experimental car can accelerate from 0 to 
in 6 s. What is the average power of the engine needed to achieve this acceleration?
- A. 150 W
- B. 150 kW
- C. 900 W
- D. 900 kW
Correct Answer: B
Explanation:
The work done by the engine is equal to the change in kinetic energy of the car:
The average power therefore is
