25 s=ut+(1)/(2)at^2 u=3 a=2 t=4 Work out the value of s.

This is a kinematic equation in physics. Here, s represents the displacement (or distance), u is the initial velocity, a is the acceleration and t is the time. The provided equation is: Given in the problem are:u = 3a = 2t = 4So by replacing the values of u, a, and t in the given equation, we get: Solving this will give us the value of s which in this case is the distance travelled. Let's just do simple multiplication and addition:s = 12 + 0.5 * 2 * 16 = 12 + 16 = 28.