Question

An athlete runs the first 45 m of the track in 15 s, the next 55 m in another 20 s and last 80 m in
25 s. Calculate the average speed of the athlete.​

Answer 1

Answer:

average speed = total distance/total time

total time = 15 + 20 + 25 = 60s

total distance = 45 + 55 + 80 = 180

180/60 = 3m/s = average velocity

Explanation:

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Answer 2

Answer:

3m/s

Explanation:

avg speed=total distance/total time taken

(45+55+80)/(15+20+25)=3m/s