a car starts from a rest and travels for 5s with a uniform acceleration of 1.5m/s2.the driver then applies the brakes,causing a uniform deceleration...

a car starts from a rest and travels for 5s with a uniform acceleration of 1.5m/s2.the driver then applies the brakes,causing a uniform deceleration of 2.0m/s2.if the brakes are applies for 3.0s,what is the velocity and displacement of the car at an instant of 3.0s during the braking period?