3.13

a = \frac{v^{2}}{r}

${a = \frac{{{v^2}}}{r}}$

a = \frac{v^{2}}{r}

$a = \frac{{{v^2}}}{r}$

a (m / s^{2})

$a \;\left(m/s^2\right)$

v (m / s)

$v\;\left(m/s\right)$

v

$v$

m / s

$m/s$

1

r

$r$

m

$m$

1

Lisa