Question

What is the acceleration of a ball traveling horizontally with an initial velocity of 20 meters/second and, 2.0 seconds later, a velocity of 30 meters/second?

Answer 1

Use this formula
\[v _{f}=v _{i}+at\]
where vf is final velocity (m/s)
vi is initial velocity (m/s)
and t is time (s)

Answer 2

Can you show me how to do it?

Answer 3

What is the initial velocity in this question?
It has to be a number with units in it.