A car was Skid to a half a uniform rate of - 9.4 m/s ^2 squared if the measure skid marks that are 34 m long with what speed is the car going just before the driver slammed the brakes

vi = 25.28 m/s

Step-by-step explanation:

a = - 9.4 m/s²

x = 34 m

vf = 0 m/s

vi = ?

We can apply the equation

vf² = vi² + 2*a*x

⇒ vi = √ (vf² - 2*a*x)

⇒ vi = √ ((0 m/s) ² - 2 * (-9.4 m/s²) * 34 m)

⇒ vi = 25.28 m/s