Acceleration of a moving car when brakes are applied is _.
Correct answer: A. Negative
- A. Negative
- B. zero
- C. Positive
- D. Infinite
Explanation
If the speed is increasing, the car has positive acceleration, but when the brakes are applied car slows down, the speed decreases. The decreasing speed is called negative acceleration. In both cases, the car is accelerating, but when speed is increasing acceleration is positive and when speed is decreasing acceleration is negative.
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