Forces always come in pairs. I don't think you can easily find a specific "cause" for that; let's say that that's the way nature works. It is related to conservation of momentum.
action-reaction force
The action is throwing the ball up in the air and the reaction is catching it in your hands. Further, the action caused the reaction to occur; forces acted in pairs.
Reaction Force
The definition of reaction force is a force that acts in opposite direction to the action force. This is in accordance to Newton's third law.
According to Newton's 3rd law, every force has an equal and opposite reaction force. Therefore, the reaction force on an object, is the exact same force it applied on another object, with the reverse direction.
action-reaction force
Force is but a reaction that is caused by the physical energy of something pushing and object.
The reaction force acts on the object causing the original force, not on the object the reaction force is caused by. So there is only one force acting on each object, and they both move (unless there is another force outside this pair preventing such movement).
how can Insulin reaction can be caused by
The action is throwing the ball up in the air and the reaction is catching it in your hands. Further, the action caused the reaction to occur; forces acted in pairs.
Reaction Force
A chemical reaction is caused by two compounds colliding. This happen with certain amount of force.
"action/reaction" does not mean " force". "Applying force" is an action, not the force itself. So, applying force will create a reaction, which may or may not balance the applied force.
The definition of reaction force is a force that acts in opposite direction to the action force. This is in accordance to Newton's third law.
To calculate brake torque, multiply force with the distance from the point of rotation. Force is equal to the torsional reaction caused by the brakes, and is also equal in magnitude to the torque exerted by the road.
Always centrifugal is the reaction force for centripetal
According to Newton's 3rd law, every force has an equal and opposite reaction force. Therefore, the reaction force on an object, is the exact same force it applied on another object, with the reverse direction.