Answer:
The average velocity of the body is 21.5 m/s.
Step-by-step explanation:
Formula
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 = 21.5 m/s
Therefore the average velocity of the body is 21.5 m/s.
y=x-4