When a driver presses the brake pedal, his car stops with an acceleration of - 8.7 m/s2. How far will the car travel while coming to a complete stop if its initial speed was 10 m/s?

Question

Physics

Nathalia Pace

30 September, 21:46

When a driver presses the brake pedal, his car stops with an acceleration of - 8.7 m/s2. How far will the car travel while coming to a complete stop if its initial speed was 10 m/s?

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Zackary Willis · Answer 1

We are given with the initial velocity and the deceleration rate and is asked in the problem the distance the car travels until the car stops. we use the kinematic equation v 2 = v 0 2 + 2aΔ x where vo = 10 m/s, a = - 8.7m/s^2 and v = 0

0 = 100 - 2 * 8.7 * Δx

Δx = 5.75 m.