12 mph = 12 * 1760 * 3 / 3600 = 17.6 feet per second
The speed is 4.1 miles per hour.
There are 3600 seconds per hour, and 5280 feet per mile. You can use those two numbers to convert from feet per second to miles per hour. Just make sure the units are right when you are finished.
100 miles per hour = [ 146 and 2/3 ] feet per second. (You don't need to know how long the speed lasted in order to know the speed.)
The speed of light in a vacuum is 299 792 458 meters per second or 983,571,056.43045 feet per second or 186,282.397 miles per second or 670,616,629.2 miles per hour.
"Per second per second" is a measurement of acceleration. If an object (such as a car) is moving, its speed can be measured in terms of miles per hour, or feet per second (which work out to be a similar figure to miles per hour). If the car is accelerating, the acceleration can be measured in terms of additional speed (feet per second) that is acquired in a given second, therefore, feet per second per second. Get it?
65 miles per hour is the fastest.5,240 feet per minute = 59.5 mph28 yards per second = 57.3 mph
They are very close but 18 feet per second is slightly faster: 12.2727 mph
That is 146.7 feet per second.
To convert miles per hour to feet per second multiply by 5280 (feet in a mile) and then divide by 3600 (seconds in an hour).
Jesse is traveling at 154 feet per second.
62.5 miles per hour equates to 91.67 feet per second.
The fastest bullet speed belongs to the .220 Swift, reaching about 4,665 feet per second (1,422 meters per second).
983,571,056.43045 feet/second in a vacuum.
80.67 feet per second.
The speed is 4.1 miles per hour.
Answer In vacuum, the speed of light is 186,282.397 miles per second. Answer The speed of light is not a constant. It is slowing down. zthere have been several experiments that prove that light is slowing down.186,282.4 miles per second.
Speed or velocity can be measured in a number of units. Miles per hour, feet per second, metre per second.