Question

if the reaction time is 10.0s, how far will the car travel before hitting the brakes?

Vf = 27.42 m
initial speed = 80 km/hr
coefficient of friction = 1.00

Answer 1

Vo = 80km/h = 80,000m/3600s = 22.22 m/s.
= Initial speed.

D = V*t = 22.22m/s * 10s = 222.2 m.