10.63 m/s
5i446
95.5 mph
Distance = Rate * Time or, for our purposes Rate = Distance/Time Rate = 400.0 m/45.0 s = 8.89 meters per second ----------------------------------
~10.2 meters per second.
Just divide the distance by the time. That will give you the speed, in meters/second. If you want kilometers/hour, multiply the result of the division by 3.6.
Usain Bolt
A sprinter's AVERAGE SPEED is calculated by taking the total distance traveled (usually in meters) and dividing that by the total time taken (usually to the nearest 1/100th of a second). Therefore if a sprinter ran the 100 meter dash in 9.69 seconds his AVERAGE SPEED would be 100m / 9.69 seconds or 10.32 meters / second. To convert meters / second to kilometers / hour: multiply meters / second by 3.6. Therefore 10.32 m/s = 37.15 km/hr. To convert km/hr into miles/hr (mph) multiply by .62. Therefore 37.15 km/hr = 23.03 mph. So you see Usain Bolt isn't even fast enough to get a speeding ticket in a 25mph residential neighborhood!
Over short distances the average person can run 100m in fifteen to twenty seconds. professional sprinters can take it down to nine seconds, or less. However, marathon running is a almost completely different from sprinting. How fast you are over a short distance may not be applicable to a longer distance.
No you can outrun bees
Distance = time * average speed (velocity) Average speed = Distance/time
sharon sprinter changes her speed from 4.5m/s to 7.5m/s in the middle 1.5 seconds of a 100m race. what is her average velocity for this time period?
speed = distance/time = 3/2.4 = 1.25 distance units/second
You can't run that fast. A tornado's speed can vary, but on average - and most of them stick pretty close to the average - they move at 35 mile an hour. The fastest sprinters barely make 25 MPH.