Acar moving at some speed hits the brakes and skids to a stop after 13 m on a level road. if the coefficient of friction for the road conditions of dry concrete is 0.66, what was the car's original speed (in m/s) before braking?

12.974 m/s

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

g = Acceleration due to gravity = 9.81 m/s²

= Coefficient of friction =0.66

a = Acceleration =

Car's original speed before braking was 12.974 m/s

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