Question

which of the following statements is true? a. newton’s third law is only valid for contact forces. b. newton’s third law states that for every acceleration of one object, there is an equal but opposite acceleration of another object. c. newton’s third law is also known as the action/reaction law. d. newton’s third law is also known as $vec{f}=mvec{a}$.

Explanation:

Newton's third law states that for every action, there is an equal and opposite reaction, and it is applicable to both contact and non - contact forces. $\vec{F}=m\vec{a}$ is Newton's second law. Newton's third law is about forces, not accelerations directly in the way stated in option b. It is well - known as the action/reaction law.

Answer:

C. Newton’s third law is also known as the action/reaction law.