Question

Sir Isaac Newton's third law of motion is called the action-reaction law. Which of the following statements appropriately describes the action-reaction forces?

• A. They act on different objects
• B. They act on the same object
• C. They are unequal in magnitude
• D. They act at right angles to one another
• E. They act in the same direction

Answer 1

Answer: (A)

They act on different objects

Sir Newton's third law states "for an action there is always an equal and opposite reaction ".But both action and reaction acts on different objects , that can be understood by following example : if a book is placed on a table , weight of book does action in downward on table and table will exert equal reaction on book in upward reaction.They are acting on different objects.