Question

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 1 s. What is your acceleration?

Answer 1

a = (v-u)/t

a=(13-7)/1

Therefore your acceleration would be 6m/s^-2

Answer 2

Whoops sorry I mean 6ms^-2

Answer 3

13m/s-6m/s=7m/s.
That in 1 sec is 7m/s/s
That's SOME big acceleration - gravity is 10m/s/s !
http://perendis.webs.com

Answer 4

13m/s is not exactly walking pace. That's 47 km/h. Probably faster than Usain Bolt can run at full speed.

Answer 5

Usain Bolt top speed: (According to Google :))
44.64kmh = 12.40ms

Just about faster than Usain ;)

Answer 6

ouch ... getting near torn muscle territory for "non Usain"s