a car manufacturer advertises that the brakes are so perfect that the car stops instantaneously. comments .
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A car manufacturer advertises that the brakes are so perfect that the car stops instantaneously. Comment. Answer: It is not possible because to stop a car in a time interval zero an infinite deceleration is needed which is impossible. It is not possible to stop the car if even the brakes are perfect because for a car to stop in a zero time interval the deceleration required must be infinite which is not possible.
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