Answer
a) +8.0 m/s
b) -8.0 m/s
c) +2.0 $\times$ $10^{1}$ m/s
Work Step by Step
displacement = $\Delta$x = $x_{f}$ - $x_{0}$
average velocity = $\frac{displacement}{time}$
a)
$\Delta$x = 6 - 2 = 4
average velocity = $\frac{4}{0.50}$ = +8.0 m/s
b)
$\Delta$x = 2 - 6 = -4
average velocity = $\frac{-4}{0.50}$ = -8.0 m/s
c)
$\Delta$x = 7 - (-3) = 10
average velocity = $\frac{10}{0.50}$ = +2.0 $\times$ $10^{1}$ m/s
