When pushing against a wall, your hand exerts a force in the direction of the wall. The wall exerts an equal and opposite reaction force back on your hand, resulting in the sensation of resistance and pressure. This interaction follows Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.
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When you catch a ball, the action force is the force applied by your hand on the ball to stop its motion. The reaction force is the force applied by the ball on your hand in the opposite direction, creating an equilibrium that allows you to catch the ball securely.
When catching a ball, the action force is the force applied by the ball on your hand. The reaction force is the equal and opposite force applied by your hand on the ball. These forces are part of Newton's Third Law of Motion.
Pushing a cart: When you push a cart forward, your hand exerts a force on the cart (action) and the cart exerts an equal and opposite force on your hand (reaction). This pair of forces follows Newton's third law of motion, showing that for every action, there is an equal and opposite reaction.
When someone pushes on a wall, the main forces involved are the normal force exerted by the wall on the person's hand (perpendicular to the wall) and the force exerted by the person's hand on the wall (opposite in direction to the normal force). Friction between the person's hand and the wall also plays a role in resisting the motion of the hand.
The force felt is air resistance, also known as drag. As your hand moves through the air, the molecules push against your hand, creating a sensation of resistance. The force increases with higher speed and surface area exposed.