How many variables are required to fully describe a system in uniformly accelerated motion?

To fully characterize the system in uniformly accelerated motion, at least three variables are required. They may include displacement, time, initial velocity, final velocity, and constant acceleration.

This can also be determined using the equations of motion. They are:

• v = u + at
• s = ut + ½ at²
• 2as = v² – u²

To determine the value of any variable, at least three known quantities must be used.