What is the formula for calculating the net force acting on an object according to Newton's second law?

• A. F = ma
• B. F = mv
• C. F = mgh
• D. F = m/v

Answer: (A)

The formula for calculating the net force acting on an object according to Newton's second law is F = ma. In this equation, F represents the net force applied to an object, m denotes the mass of the object, and a signifies the acceleration that the object experiences due to that force. This fundamental relationship illustrates that the net force is directly proportional to both the mass of the object and its acceleration. Consequently, if a greater force is applied to an object, or if the object has a larger mass, the resulting acceleration will increase correspondingly.

The other formulas presented relate to different physical concepts. For instance, F = mv, commonly associated with momentum (where momentum is the product of mass and velocity), does not represent net force. Similarly, F = mgh calculates gravitational potential energy (where g is the acceleration due to gravity and h is the height), not force. Finally, F = m/v is not a standard formula in physics and does not correspond to any common principle regarding force. Thus, option A is the appropriate choice reflecting Newton's second law of motion.