Question

I REALLY NEED HELP!!

Answer 1

Answer:

Explanation:

Although we do have an equation for this in terms of one-dimensional motion, it's easy enough just to use the mathematical definition of acceleration:

$a=\frac{v_f-v_0}{t}$  which says, in words, the acceleration of an object is equal to the objects final velocity minus its initial velocity, divided by the change in time. Since everything is given in m and s, our answer will be in m/s/s:

$a=\frac{16.0-4.0}{4.0}$ and

$a=\frac{12.0}{4.0}$ so

a = 3.0 m/s/s