(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The spacing between two traffic lights is 300m. A car can accelerate from rest with a

constant acceleration of 4 m/s2 and decelerate at 8 m/s2. (Ignore the reaction time of the

deriver.)

a) What is the maximum speed the car can reach and still be able to stop right at the

second traffic lights when it starts from rest at the first traffic lights?

b) Under these circumstances how long does it take for the car to travel between the two

traffic lights?

3. The attempt at a solution

I know that displacement (x) = 300m

Acceleration (a) = 4m/s2 and -8m/s2

initial velocity (Vo) = 0 m/s

-After this I am stumped on what equation to use. Are we trying to find time for both and final velocity for both and if so what equation do we use, thanks!

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# Homework Help: Kinematics - Car accelerating from traffic light

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