13 mph
(40 yards) / (4.5 seconds) times (3,600 seconds per hour) / (1,760 yards per mile) =18 and 2/11 miles per hour
40 yards = 120 feet = 120/5280 = .0227 miles speed = distance /time = .0227/5.1 = .00445 miles per second At 3660 seconds per hour, that is .00445 x 3600 = 16 mph
Jason ran 200 yards in 36 seconds
1.28 seconds.
80.25 yards
13 mph
4.5 seconds in the 40-yard dash is a pace of 18.18 mph
Speed = Distance divided by Time 1760 yards = 1 mile. 3600 seconds = 1 hour 40/1760 divided by 4.8/3600 = 17.0454545 Answer: about 17 mph TIP: put "4.8 seconds / 40 yards in mph" into google, and it will calculate it for you.
Running 40 yards in 4.2 seconds is equal to running 19.5 MPH.
11.1014 mph
Without any units for either the 40 or the 4.9 , the only thing we can say for sureis that your speed is exactly 40/4.9 , or about 8.163 length unit/time unit .-- If the 40 is meters and the 4.9 is seconds, thenyour speed is about 29.4 km/hr or 18.26 mph.-- If the 40 is yards and the 4.9 is seconds, thenyour speed is about 16.7 mph or 26.9 km/hr .
Their speed is ten yards per second.Takamo added: There are several variables with in this question. We have to determine how fast a person can cover 40 yards. In this case, it's 4 seconds. To determine the actual speed, as in Miles Per Hour, (MPH) we have to use a known constant. Say, a car going 60 MPH. We all know that a car going 60 MPH is traveling at one mile per minute. There are 60 seconds in a minute, and 5280 feet in a mile, so by dividing the 5280 feetby 60 seconds, we find that the car is traveling at a velocity of 88 FPS(feet per second).A human can run, in this case, 40 yards in 4 seconds. There is 120 feet in 40 yards, so the runner moves at a velocity of 30 FPS. To match the un-known, (the MPH of the runner) and compare it to a known MPH, (the car) we divide the FPS of the car by the FPS of the runner and we get 2.6. This is the variable between them, in that the same distance, the car is traveling 2.6 times faster than the runner. Knowing the speed of the car, 60 MPH, and knowing now, how much faster its going than the runner, we simply divide the MPH of the car, 60MPH by 2.6 and we get the runner's land speed of of 23.07 MPH.
(40 yards) / (4.5 seconds) times (3,600 seconds per hour) / (1,760 yards per mile) =18 and 2/11 miles per hour
40 yards in 4 seconds
It is going about 9.3 yards per second; 40/4.3.
40 yards = 120 feet = 120/5280 = .0227 miles speed = distance /time = .0227/5.1 = .00445 miles per second At 3660 seconds per hour, that is .00445 x 3600 = 16 mph