Answer to Question #150423 in Physics for lol

Question #150423

The brakes of an automobile can accelerate it at -7.20 m/s2. What time is required to reduce the velocity of the automobile from 50.0 m/s to 12.5 m/s?

Expert's answer

The time is change in velocity divided by acceleration;

"t=\\frac{v_f-v_i}{a}=\\frac{12.5-50}{-7.2}=5.2\\text{ s}."

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