Acar headed north at 15 m/s accelerates for 4.25 s to reach a velocity of 28.3 m/s. what is the acceleration of the car?

The acceleration of the car is

Explanation:

In the question it is given that car initially heads north with a velocity . It then accelerates for and in the end its velocity is .

initial velocity

time

final velocity

The equation of acceleration is

The value of acceleration is positive, here since the car is speeding up. If it was slowing down the value of acceleration would be negative.

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2