Question

Formula one racers speed up much more quickly than normal passenger vehicles, and they also can stop in a much shorter distance. a formula one racer traveling at 90 m/s can stop in a distance of 110 m. What is the magnitude of the car's acceleration as it slows during braking?

Answer 1

a = -36.8 m/s/s

Step-by-step explanation:

Initial speed of the car

`v_i = 90 m/s`

finally car will stop after it cover the distance

`d = 110 m`

so we have

`v_f^2 - v_i^2 = 2 a d`

here we have

`0 - 90^2 = 2(a) (110)`

`a = (90^2)/(220)`

`a = -36.8 m/s^2`