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

Do you know the relation between acceleration and velocity?

Answer 2

\[a=\frac{ \Delta v }{ \Delta t }=\frac{ v-v_0 }{ t-t_0 }\]

Answer 3

\[v-v_0 \] is change in velocity
\[t-t_0 \] is change in time

Answer 4

so v-v0 =30 -20 =10
t-t0 = 2-0=2
what is a then?