Near the end of a marathon race, the first two runners are separated by a distance of45.0m. The front runner has a velocity of3.45m/s,and the second a velocity of4.20m/s.

(a)What is the velocity (in m/s) of the second runner relative to the first?

0.70m/s faster than the front runner

(b)If the front runner is 250 m from the finish line, who will win the race, assuming they run at constant velocity?

The second runner will win.

(c)What distance (in m) ahead will the winner be when she crosses the finish line? m

I need C solved please.