Question

8. A runner competes in the 400 meter dash and finishes with a time of 64 seconds. If the track is a
perfect oval, with the starting line and finish line at the same point, and the runner's average speed
was 6.25 meters/second, what was the total distance travelled by the runner?​

Answer 1

Answer:

s

THE BRAINLIEST ANSWER!

abhi178

abhi178 Genius

When finish line is same as that of initial line , it means length of one round =

2 × Length of track = 2 × 200 = 400 m

(a) total distance covered by athletics =

4 × Length of one round

= 4 × 400 = 1600 m = 1.6 Km = 1 mile

(b) displacement covered by athletics = final position - inital position =0

{ we know, accroding to question one round equal final position is same as initial position so, displacement in one round = 0 hence, displacement in 4 rounds = 0}

(C) we probably say that motion of athletic is non - uniform motion

becoz in question , never include about athletic speed , { e.g constant or not }

but practically athletic moves non - uniform motion , becoz sometime he accelerates own motion , sometimes do slow .

(d) never !!!

because , displacement = 0

but distance = 1600m = 1.6 km

Answer 2

Answer:

400 meters

Explanation: