Question

an athlete sprints from 150 m south of the finish line to 65 m south of the finish line in 5.0s what is his average velocity

Answer 1

`displacement = 150 - 65 = 85m \\ time = 5sec \\ velocity = (displacement)/(time) \\ = (85)/(5) = 17 (m)/(s) south \\ thank \: you`

Answer 2

• Total distance=150m-65m=85m
• Time=5s

`\\ \rm\longrightarrow Avg\:Velocity=(Total\:Distance)/(Total\:Time)`

`\\ \rm\longrightarrow Avg\:Velocity=(85)/(5)`

`\\ \rm\longrightarrow Avg\:Velocity= 17m/s`