The velocity of a car increases from +2.0 m/s to +16.0 m/s in a time period of 3.5 s. What was the average acceleration?

The average acceleration is

Explanation:

Motion With Constant Acceleration

It's a type of motion in which the velocity of an object changes uniformly in time.  If only the magnitudes are considered, then the equation that describes the change of speeds is:

Where:

a   = acceleration

vo = initial speed

vf  = final speed

t    = time

The velocity (magnitude or speed) of a car increases from v0=2 m/s to vf=16 m/s in t=3.5 s. We can calculate the acceleration by solving for a:

The average acceleration is

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