High School

A car is moving at 38.4 m/s when it slams on the brakes and slows to 10.0 m/s in 2 seconds. Assuming constant acceleration, how many meters did the car travel during that time?

Answer :

Answer: - 14.2 m/s^2

Explanation: use the formula -
Vf = Vo + at


Vf: final velocity

Vo: initial velocity

a: acceleration

t: time


Vf = Vo + at, subtract Vo from both sides and then divide both sides by t to isolate a.


(Vf - Vo)/ t = a, then plug in the values and solve.

(10 - 38.4)/2 = -28.4/2 = -14.2 m/s^2


Hope this helps.

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