The velocity of a car was 30m/s when the driver pushed the brake of the car and it stopped after 2 seconds. assume that the acceleration was constant during the braking time. find the acceleration and the distance cut during the braking

the "acceleration" is -15m/s (it's negative because it is slowing down, not speeding up[it might just be a positive 15m/s if it is called deceleration and not acceleration])

Step-by-step explanation:

30m/s (starting speed)/2 (the number of seconds it took to stop from 30m/s

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set

a negative exponent is translated as follows:

so, we have