When you stand on a floor, the normal force acting on you is equal in magnitude but opposite in direction to your weight.
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The force a floor exerts on you is equal and opposite to your weight. This force is known as the normal force, which supports your weight and prevents you from falling through the floor. The magnitude of this force depends on your mass and the acceleration due to gravity.
The magnitude of the normal force is equal to the weight of the box when the box is at rest on a flat surface.
The floor exerts an upward force of 200N on the woman, which is equal in magnitude to her weight to keep her stationary. This force is known as the normal force, which acts in the opposite direction to the force of gravity.
The force is called normal force. It is a reactionary force exerted by a surface to support the weight of an object resting on it. In the context of standing on a floor, the normal force from the floor acts in the upward direction to balance the downward force due to gravity acting on the person.
The net force on the box is 0N since it is at rest on the floor. The gravitational force pulling it downwards (weight) is balanced by the normal force exerted by the floor in the upward direction.