# Ann walked 1.5 miles south to her house in 0.5 hours. What is Ann's speed and velocity?

Sep 26, 2016

Ann's speed is $\text{3 mi/h}$. Her velocity is "3 mi/h south.

#### Explanation:

$v = \frac{\Delta d}{\Delta t}$, where $v$ is velocity, $\Delta d$ is displacement, and $\Delta t$ is time interval.

Substitute the known values into the equation.

v=(1.5"mi")/(0.5"h")="3 mi/h" (without direction, this is her speed)

The direction given was south, so Ann's velocity is $\text{3 mi/h south}$.