Question

You brake your car from 75 kilometers per hour to 45 kilometers per hour over a displacement of 88 meters.What is the acceleration assumed to be constant?

Answer 1

Answer:1.577 m/s

Explanation:Initial vel=75 km/h=20.83 m/s

Final vel=45km/h=12.5m/s

X=88m

V^2-u^2=2ax

156.25-433.88=2×a×88

a=277.63/176=1.577m/s