Physics
Answer
Yes, action and reaction are equal in magnitude.
Example — The spring of balance A pulls the spring of balance B due to which we get some reading in balance B. The same reading is seen in balance A because the spring of balance B also pulls the spring of balance A by the same force.
The pull on the spring B by the spring A is the action FBA and the pull on the spring A by the spring B is the reaction FAB.
This demonstrates that "to every action, there is an equal and opposite reaction" (i.e., in magnitude FAB = FBA but they are in opposite directions. )
Related Questions
Name and state the action and reaction in the following cases —
(a) firing a bullet from a gun,
(b) hammering a nail,
(c) a book lying on a table,
(d) a moving rocket,
(e) a person walking on the floor,
(f) a moving train colliding with a stationary train.
“The action and reaction both act simultaneously.” Is this statement true?
Comment on the statement 'the sum of action and reaction on a body is zero'.
[Hint: The statement is wrong]
State the usefulness of Newton’s third law of motion.