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

a cab driver picks up a customer and delivers her 2.00km away, on a straight route. The driver accelerates to the speed limit and, on reaching it, begins to decelerate at once. the magnitude of the deceleration is three times the magnitude of the acceleration. find the lengths of the acceleration and deceleration phases.

2. Relevant equations

vf=vi+at

x=xi+vit+.5at^2

3. The attempt at a solution

I honestly dont know where to begin. I tried setting up multiple equations but i keep getting more variables then equations.

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# Homework Help: Velocity, acceleration, displacement

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