- #1

lauriecherie

- 44

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## Homework Statement

The brakes on your car are capable of slowing down your car at a rate of 4.9 m/s^2.

If you are going 132 km/h and suddenly see a state trooper, what is the minimum time in which you can get your car under the 90 km/h speed limit?

## Homework Equations

v(t)= at + initial velocity

(final velocity^2) - (initial velocity^2) = 2*a*delta X (change in position)

## The Attempt at a Solution

I came out with 8.57 seconds. Is there some converting I maybe missed?