physical science
posted by Selena .
I am having a little trouble with this problem. can someone please HELP!
During a race, a runner runs at a speed of 6m/s. 2 seconds later, she is running at a speed of 10 m/s what is the runner's acceleration?

V = Vo + a*t = 10 m/s.
6 + a*2 = 10
2a = 4
a = 2 m/s^2.