What is the magnitude of the deceleration


To stop a car, first you require a certain reaction time to begin braking. Then the car slows down at a constant rate. Suppose that the total distance moved by your car during these two phases is 56.7 m when its initial speed is 82.0 km/h, and 24.4 m when the initial speed is 49.8 km/h.

(a) What is your reaction time?

(b) What is the magnitude of the deceleration?

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Physics: What is the magnitude of the deceleration
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