A driver in a car traveling at a speed of 70 km/h sees a cat 129 m away on the road. How long will it take for the car to accelerate uniformly to a stop in exactly 125 m? answer in units of s

1 answer

change km/h to m/s

Vf^2=Vi^2+2a*125
solve for a.
Then, vf=vi+at solve for t.