
Usain Bolt set a new 100m world record yesterday: 9.58 sec. That's an average speed of 37.6km/h over the 100 metres.
He starts at 0km/h, and sprinters always slow down over the last 20 metres, so his top speed must be over 40km/h.
At what speed is it possible to run off a skateboard?
Tags: run it out, running
-
▶ Reply to This