Provide all the assa cimail places On a one kilometre running track 30 witra marathon runners ar interval training by running one lap Doe. one kilometer) at 9 Marked out of 6 00 howwh, briskly waking a recovery up at 5 keith, and thin continuing no sternate beteton up speeds of 9 lik and 5 kevh for a wry long posed of time To help visualize the trythem, you can attome that the runners start along the back in such a wary that each speed class (in those going at 5 krish or those going at " kurt) maintains nearly uniform spacing over the track (a) Determine the total flow (runners/h) of runners past any point on the track. (b) Determine the aners in kim/hi (c) Determine the the runners in km/h. (d) The coach is interested in observing them only during their run laps. Determine the flow (runners/h) of nanners past the coach