Original
Next let's consider the average velocity of the ball.
{{CMD_84}}
What is the average velocity of the ball on the time interval {{MATH_85}}?
{{CMD_86}}
In order to find the average velocity of the ball on the interval {{MATH_87}} we recall that the average velocity on
the time interval {{MATH_88}} is given by
{{MATH_89}}
Now we just plug in {{MATH_90}} and {{MATH_91}}.
{{MATH_92}}
Check the figure below.
{{CMD_93}}{{ENV_94}}{{CMD_95}}
{{CMD_96}}
{{CMD_97}}