Question

if the velocity of a body changes from 13m/s to 30m/s while undergoing constant acceleration whats the average velocity of the body

Answer 1

Average speed = (1/2) (beginning speed + ending speed)
= (1/2) ( 13 m/s + 30 m/s )
= (1/2) ( 43 m/s )
= 21.5 m/s

Answer 2

The average velocity of the body is 21.5 m/s.

Explanation:

Formula

`Average\ velocity = (Initial\ velocity + Final\ velocity)/(2)`

As given

if the velocity of a body changes from 13m/s to 30m/s while undergoing constant acceleration.

Initial velocity = 13m/s

Final velocity = 30 m/s

Put in the above

`Average\ velocity = (13 + 30)/(2)`

`Average\ velocity = (43)/(2)`

Average velocity = 21.5 m/s

Therefore the average velocity of the body is 21.5 m/s.