According to Newton’s second law, how does an object’s acceleration depend on the net force acting on it (for constant mass $m$)?

• A. Acceleration is directly proportional to net force: $a=\frac{F_{\mathrm{net}}}{m}$.
• B. Acceleration is independent of net force and depends only on mass: $a=m$.
• C. Net force is proportional to the square of acceleration: $F_{\mathrm{net}}=m{a}^2$.
• D. Acceleration is inversely proportional to net force: $a=\frac{m}{F_{\mathrm{net}}}$.

Answer: (A)