Question

A student walks 144 m West ,then turns around and walks 89m east if this takes place in 7.5 minute interval ,what is the student average velocity in meters per second what is the students average speed

Answer 1

Average speed of the student is 0.517
`(m)/(s)`

Given:

`s_(1)` = 144 meter

`s_(2)` = 89 meter

Time = 7.5 minutes

To find:

Average speed of the student = ?

Formula used:

Average speed =
`(Total distance)/(Total time)`

Solution:

Average speed is given by,

Average speed =
`(Total distance)/(Total time)`

Total distance = 144 m + 89 m = 233 m

Total time = 7.5 minutes = 7.5 × 60 = 450 second

Average speed =
`(233)/(450)`

Average speed = 0.517 m/s

Average speed of the student is 0.517
`(m)/(s)`