Question

The action and reaction forces referred to in Newton's third law of motion

• A. must act on same body
• B. must act on different bodies
• C. need not be equal in magnitude but must have the same line of action
• D. must be equal in magnitude but need not have the same line of action

Answer 1

Answer: (B)

must act on different bodies

Newton's third law of motion states that to every action, there is always an equal and opposite reaction, i.e., the forces of action and reaction must act on two different objects and never cancel out each other.