Answer:
10.0 m/s
Explanation:
The motion of the player is a uniformly accelerated motion (=at constant acceleration).
Therefore, we can calculate the final speed by using the following suvat equation:
[tex]v=u+at[/tex]
where
v is the final velocity
u is the initial velocity
a is the acceleration
t is the time
In this problem:
u = 4.0 m/s is the initial velocity
[tex]a=2.0 m/s^2[/tex] is the acceleration
t = 3.0 s is the time
Therefore,
[tex]v=4.0+(2.0)(3.0)=10.0 m/s[/tex]
So, the final speed is 10.0 m/s.