Answer: Final velocity is 0.4 m/s
Explanation:
Write out the values you have and what you are trying to solve for first.
Displacement = 4 meters
Initial Velocity = 0 m/s (Starting from rest)
Time = 20 seconds
You are trying to solve for Final Velocity
The kinematic equation you would use would be Displacement = 1/2 (Vi+Vf)t with vi being initial velocity , Vf being final velocity and t being time. Plug in the values you have 4 = 1/2 (0+Vf)20 and solve for Vf getting you a final answer of Final Velocity = 0.4 m/s
Hope this helped!
