According to Newton's second law of motion, the acceleration of an object equals the net force acting on the object divided by the object's a weight. b velocity. C momentum d mass.

## Step 1<br />The problem is asking us to identify the correct term that completes the statement of Newton's second law of motion. Newton's second law of motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This relationship is mathematically represented as \( F = ma \), where \( F \) is the net force, \( m \) is the mass of the object, and \( a \) is the acceleration.<br /><br />## Step 2<br />Let's evaluate each option:<br />- Option a, "weight," is incorrect because weight is the force exerted by gravity on an object and is not directly used in the formula for Newton's second law.<br />- Option b, "velocity," is also incorrect. Velocity is a vector quantity that describes the speed and direction of an object's motion, but it does not appear in the formula for Newton's second law.<br />- Option c, "momentum," is not correct either. Momentum is the product of an object's mass and velocity and is not used in the formula for Newton's second law.<br />- Option d, "mass," is the correct answer. The formula for Newton's second law is \( F = ma \), which shows that acceleration is inversely proportional to mass when the net force is constant.