Athletic oval

On the 400 m athletic oval, two athletes started back to back from the same level. After the starting shot, they both ran away from each other simultaneously. Athlete A ran at 15 km/h, and Athlete B ran at 17 km/h. A) in how many seconds did the athletes meet each other? B) how many meters did each athlete run before they met?

Correct answer:

t =  45 s
s1 =  187.5 m
s2 =  212.5 m

Step-by-step explanation:

s=400 m v1=15 km/h m/s=15:3.6  m/s=4.16667 m/s v2=17 km/h m/s=17:3.6  m/s=4.72222 m/s  t=v1+v2s=625+1885400=45 s
s1=v1 t=625 45=625 45=61125=187.5 m
s2=v2 t=1885 45=1885 45=183825=212.5 m

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