What are forces that are equal in size but opposite in direction?

Answer 1

An example would be a book placed on a table. The book's weight is acting perpendicular to the table and the reaction of the table on the book is also acting perpendicular to the table, but both thse forces are opposite in direction and equal in magnitude, the reasons the book and the table are satble and in equilibrium

Answer 2

centripetal and centrifugal forces are the forces that are equal in magnitude but are opposite in direction.these forces come into force when a body is in a circular motion.the centripetal force tends to attract the body towards the center while the centrifugal force tries to take the body away from the center

Answer 3

Equal forces is The third law says that for every action (force) there is an equal and opposite reaction (force). Forces are found in pairs. Think about the time you sit in a chair. Your body exerts a force downward and that chair needs to exert an equal force upward or the chair will collapse. It's an issue of symmetry. Acting forces encounter other forces in the opposite direction. There's also the example of shooting a cannonball. When the cannonball is fired through the air (by the explosion), the cannon is pushed backward. The force pushing the ball out was equal to the force pushing the cannon back, but the effect on the cannon is less noticeable because it has a much larger mass. That example is similar to the kick when a gun fires a bullet forward.

Answer 4

Do you mean buoyancy?

They are said to be balanced, because their net sum, or resultant, is zero.

Answer 5

action-reaction forces

Answer 6

Positive and negative charges such as in ions of solutions

Answer 7

action-reaction forces

Answer 8

Their vector sum is zero.