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When the cardboard is at rest, the magnitudes of the two forces acting on it (gravity pulling down and normal force pushing up) are equal in magnitude and opposite in direction to maintain equilibrium. This means the net force acting on the cardboard is zero.
When the cardboard is at rest, the magnitudes of the pair of forces acting on it are equal, but they act in opposite directions. This is known as Newton's third law of motion, stating that every action has an equal and opposite reaction. The forces cancel each other out, resulting in a state of equilibrium.
When the cardboard is at rest, the magnitudes of the pair of forces acting on it are equal. These forces form an action-reaction pair, with one force pushing or pulling in one direction, and the other force of equal magnitude pushing or pulling in the opposite direction.
Since the cardboard is at rest we know that it is not experiencing any acceleration, hence, the net forces acting on it add up to zero (in magnitude and direction). Force equals mass times acceleration.
To calculate forces acting in the same direction, simply add the magnitudes of the forces together. For forces acting in different directions, you must consider both the magnitudes and directions of the forces, using vector addition or subtraction to find the resultant force.
When the cardboard is at rest, the magnitudes of the pair of forces acting on it are equal but in opposite directions. This is known as Newton's third law of motion, which states that for every action force there is an equal and opposite reaction force.
When two forces are acting on an object in opposite directions, we combine them by finding the difference between the magnitudes of the two forces. The direction of the resulting force will be in the direction of the larger force.
The direction of the net force acting on the object at position A depends on the individual forces acting on the object. If the net force is the vector sum of all forces, the direction will be determined by the relative magnitudes and directions of those individual forces.