The speed limit is 70 miles per hour on some stretches of the interstate. What is this same speed in meters per second, (m/s)?
(1 mile = 1.60 km)

Question

Quizplus · Accepted Answer

To convert miles per hour (mph) to meters per second (m/s), we need to use the following conversion factors:
1 mile = 1609.34 meters
1 hour = 3600 seconds

So, to convert 70 mph to m/s, we can use the formula:
speed in m/s = (speed in mph) x (1609.34 meters/1 mile) x (1 hour/3600 seconds)

Plugging in the values, we get:
speed in m/s = 70 x 1609.34/3600
speed in m/s = 31.29 (rounded to two decimal places)
Therefore, the answer is B: 31 m/s.

The Speed Limit Is 70 Miles Per Hour on Some