Often speed is given in miles per hour (mph), but in physics, you will almost always work in SI units. Therefore, you must convert mph to meters per second (m/s).
Part C:
What is the speed of a car going 1.000 mph in SI units? Notice that you will need to change from miles to meters and from hours to seconds. You can do each conversion separately: Use the facts that 1 mile = 1609 m and 1 hour = 3600 seconds. Express your answer in meters per second to four significant figures.