Question #42471

1 Answer
Junaid Mirza
Nov 30, 2017

#"1.75 m/s" and "0 m/s"#

Explanation:

Total distance travelled by runner#= 10 × "Circumference of circle"#

Average speed#= "Total distance" / "Time" = (10 × 2 π × "50 m") / (30 cancel"min" × "60 s"/cancel"min") = "1.75 m/s"#

After 30 minutes runner is at initial point. Therefore displacement of runner is zero.

Average velocity#= "Displacement"/"Time" = 0#

Related questions
Impact of this question
215 views around the world
You can reuse this answer
Creative Commons License