+0  
 
0
929
1
avatar+41 

A runner whose initial speed is 29km/h increases her speed to 31km/h in order to win a race. If the runner takes 5.0s to complete this increase in her speed, what is her accelration

 Oct 25, 2017
 #1
avatar+471 
+1

 

Average velocity = \(a\) =\(\frac{{x}_{f} - {x}_{i}} {{t}_{f} - {t}_{i}}\)

Where:

\({x}_{f}\)= Final position

\({x}_{i}\)= Initial position

\({t}_{f}\)= Final time

\({t}_{i}\)= Initial time

 

Acceleration = \(\frac{Velocity}{Time}\)

________________________________________________________________________________________________

That is what I can do for sure, but I am not able to solve that right now. Maybe you can figure the answer out yourself with these formulas?

 Oct 25, 2017

1 Online Users