To calculate the final velocity of a body that undergoes uniform acceleration for a given time, we can use the equation:
Final velocity (v) = Initial velocity (u) + (Acceleration (a) * Time (t)).
In this case, the body has an initial velocity (u) and accelerates uniformly for two seconds (t).
If we assume the initial velocity (u) and acceleration (a) values are known, we can substitute them into the equation to find the final velocity (v).
Please provide the values for the initial velocity (u) and acceleration (a) so that I can assist you in calculating the final velocity.