In
\[2009\], Usain Bolt set the world record for sprinting
\[100 \text{ m}\] in approximately
\[9\dfrac{3}5\] seconds.
Find his average speed in meters per second.
3 answers
To find Bolt's average speed in meters per second, we divide the distance he ran by the time it took him. Since he ran 100 meters in approximately $\frac{48}{5}$ seconds, his average speed is $\dfrac{100}{\frac{48}{5}} = \dfrac{500}{48} = \boxed{\dfrac{125}{12}}$ meters per second.
what is it
The average speed is $\boxed{10\dfrac{5}{12}}$ meters per second.
2 answers