gravity
For every action there's an equal and opposite reaction. A clearer way of saying this may be: When you push on something it pushes back with a equal force. Think of pushing on a building. You apply a force on the building but it is pushing back with the same force, else it would move.
When you push on a wall, the wall exerts an equal and opposite force back on you, as described by Newton's third law of motion. This is due to the interaction between the force you apply to the wall and the reaction force the wall applies to you. As a result, you may feel the resistance of the wall pushing back against you.
When you kick a ball, the force you apply forward is balanced by the equal and opposite force from the ball pushing back on your foot. This results in a net force of zero on the ball at that moment, causing it to move forward.
The reaction force when you jump on a trampoline is the force exerted by the trampoline surface pushing back against your feet. This force is equal in magnitude and opposite in direction to the force you apply on the trampoline, allowing you to bounce and propel yourself upwards.
the four ways are front back left or right
static friction
An example of spring force is the force exerted by a compressed or stretched spring as it tries to return to its equilibrium position. When you compress a spring by pushing on it, the spring exerts a force pushing back in the opposite direction.
Well, depending on which way you are pushing, it could be one of three forces. If you are pushing along a table, then it is friction that is preventing the box from moving (or more accurately, static friction). If you are pushing the box down into the table, then it is the normal force that is at work. If you are pushing into the air, then it is gravity.
The force that causes your fingers to bend when pushing against a wall is the normal force exerted by the wall acting in the opposite direction. This force counteracts the force you apply with your fingers, resulting in compression and bending of your fingers.
When you throw a heavy object forward, according to Newton's third law of motion, there is an equal and opposite reaction pushing you backward. This reaction is due to the force that you apply to the heavy object causing an equal reaction force in the opposite direction, leading to you falling back.
1. Inertia 2. Friction 3. A force when you move your pen or hand
When an airplane is motionless on the tarmac, discounting any winds, there are two primary forces acting on it. First is the force of gravity pushing downwards, and secondly, there is the reactionary force pushing back upwards.