Speed is a measure of how quickly an object moves from one place to another. It is equal to the distance traveled divided by the time. It is possible to find any of these three values using the other two.
The solution would be like this for this specific problem, please see attached image.
The speed of the ball as it passed the top of the flagpole is 17.6 m/s.
Answer:
[tex]v_f = 35.3 m/s[/tex]
Explanation:
It took 4.1 s to reach the top point of its path
so after t = 4.1 s the final velocity of the ball will become zero
so we will have
[tex]v_f = v_i + at[/tex]
[tex]0 = v_i - (9.81)(4.1)[/tex]
[tex]v_i = 40.22 m/s[/tex]
Now we have to find the speed of ball after 0.5 s when it will reach the top of the pole
so it is given as
[tex]v_f - v_i = at[/tex]
[tex]v_f = 40.22 - (9.81)(0.5)[/tex]
[tex]v_f = 35.3 m/s[/tex]
