A sprinter finishes the 100 m dash in 9 seconds. What was the sprinter's speed?

2 Answers
Mar 1, 2018

#11.11111ms^-1#

Explanation:

#Speed = "Distance"/"Time"#

#Speed = "100m"/"9s"#

#Speed = 11.11111ms^-1#

Mar 1, 2018

#~~11.1 \ "m/s"#

Explanation:

Speed is given by the equation

#s=d/t#

Here, #d=100 \ "m",t=9 \ "s"#.

Plugging in those values, we get

#s=(100 \ "m")/(9 \ "s")~~11.1 \ "m/s"#