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

Answer:

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

Step-by-step explanation:

Formula

$Average\ velocity = \frac{Initial\ velocity + Final\ velocity}{2}$

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

$Average\ velocity = \frac{13 + 30}{2}$

$Average\ velocity = \frac{43}{2}$

Average velocity = 21.5 m/s

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

Answer 2

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