2 braking times?

[phipps66]

Ok i have this problem and i have having trouble with it. It reads:

A car starts from rest and travels for 5.0 seconds with a uniform acceleration of +1.5m/s^2. the driver then applies the brakes, causing a uniform acceleration of -2.0m/s^2. If the brakes are applied for 3.0 seconds find: how fast the car is going at the end of the braking period, and how far it has gone

i am confused as which is the initial time and the acceleration to use. i am lost, physics is my worst :frown:

[phipps66]

ok i figured out the first part of 1.5m/s as how fast the car is going at the end of the braking period. i just can't figure out the distance

[NateTG]

What formulas do you have?

[phipps66]

the kinematic equations'

[NateTG]

Can you figure out the distance that is traveled while the car is accelerating (before braking)?