Answer:
19m/s
Hope this answer is right!!
Explanation:
The initial and final velocity is given and the average velocity is asked, which can be calculated by the following method,
Given that initial velocity = 10 m/s and final velocity = 28 m/s
Average velocity = final velocity+initial velocity/2
Although, average Velocity=total displacement/total time
But here, there is only given initial and final velocity therefore it will be simply an average of the two.
Therefore, the average velocity of the object is 19 m/s.
