Acar skids 18 m on a level road while trying to stop before hitting a stopped car in front of it. the two cars barely touch. the coefficient of kinetic friction between the first car and the road is 0.80. a policewoman gives the driver a ticket for exceeding the 35 mi/h speed limit.
determine the initial speed of the car.

16.80856 m/s or 37.6 mph

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity = 0

s = Displacement = 18 m

a = Acceleration

g = Acceleration due to gravity = 9.81 m/s²

The initial speed of the car is 16.80856 m/s

Converting to mph

The initial speed of the car is 37.6 mph

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