Effective distance run = 100 m + (9.84 x 0.5) = 104.92
Effective speed = 104.92 m per 9.84 s
Therefore with no wind resistance, time to cover 100 meters = 100/104.92 x 9.84 = 9.3786 (9.38) seconds.
LOL:)
10.08 to 10.10 thereabouts
A 1.7 m/s tailwind would improve his time by 0.08 seconds.
A 1.7 meter/second tailwind would aid the runner by .08 seconds. The adjusted time would be 9.70 seconds. Here's a link to use for wind and altitude adjustments: http://myweb.lmu.edu/jmureika/track/wind/index.html
19.89 seconds
The opposite of fast wind would be calm or still air.
The wind direction would be blowing to the north if it is going over your head while you stand south of the smoke stack.
If wind energy increases, wind mills will run more fast. More electricity will be produced.
310
This means that the runner/ jumper is running into a head wind of 6.1mph. To explain another way, the runner would not be assisted by the wind but running against it. If it said +6.1 the runner would have an advantage as the wind would be behnid them.
As of 2021, the world record for the men's 100m is 9.58 seconds, held by Usain Bolt from Jamaica. For the women's 100m, the world record is 10.49 seconds, held by Florence Griffith-Joyner from the USA.
it travels three times as fast as a comet
ALMOST as fast as the wind!