Answer :
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
= (1/2) ( 13 m/s + 30 m/s )
= (1/2) ( 43 m/s )
= 21.5 m/s
Answer:
The average velocity of the body is 21.5 m/s.
Step-by-step explanation:
Formula
[tex]Average\ velocity = \frac{Initial\ velocity + Final\ velocity}{2}[/tex]
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
[tex]Average\ velocity = \frac{13 + 30}{2}[/tex]
[tex]Average\ velocity = \frac{43}{2}[/tex]
Average velocity = 21.5 m/s
Therefore the average velocity of the body is 21.5 m/s.