Question

Can you please give me the equation for the 3rd law and define the variables and give me a example of it

Answer 1

Newton's third law of motion

`F_(12)=-F_(21)`

Here F_12 is the force due to the first body on the second body.

F_21 is the force due to the second body on the first body.

The negative sign indicates that the direction of force is opposite.

Example: Hitting the wall with your hand.

You are applying force on the wall with your hand and the wall will exert an opposite force on the hand of equal magnitude.