Final answer:
Force is the variable that connects Newton's 2nd Law to the Equations of Uniformly Accelerated Motion. Newton's second law is stated as F = ma, where acceleration is a result of force. Uniformly accelerated motion equations involve this acceleration, hence the connection with force.
Step-by-step explanation:
The variable that typically connects Newton's 2nd Law to the Equations of Uniformly Accelerated Motion is Force (D). Newton's second law of motion is mathematically stated as F = ma, where F is the net external force acting on an object, m is the mass of the object, and a is the acceleration. This law indicates that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Equations of uniformly accelerated motion, such as v = u + at (where v is the final velocity, u is the initial velocity, and t is the time), s = ut + 1/2 at2 (where s is the displacement), and v2 = u2 + 2as, involve acceleration which is connected to force via Newton's second law.