Question

a car has a speed of 80 miles per hour. what is its velocity in meters per second? (note: theres nothing to stop you from using a search engine for this, but try doing the unit conversion on your own first)
remember, that we say there are 1609 meters in a mile in this class. (this is a slight approximation, but its what i use for simplicitys sake)

Explanation:

Step1: Convert miles to meters

Since 1 mile = 1609 meters, for 80 miles, the distance in meters is $80\times1609$ meters.

Step2: Convert hours to seconds

Since 1 hour = 3600 seconds.

Step3: Calculate velocity in m/s

Velocity $v=\frac{80\times1609}{3600}$ m/s.
$v=\frac{128720}{3600}\approx35.76$ m/s

Answer:

$35.76$ m/s