9. Ahearyboxis pushed across the surface of a desk to the right. According to Newton's Laws of Motion which of the following statements is correct? The desk exerts an upward force on the box smaller than the box's weight. It is impossible to know how the upward force on the box compares to the box's weight. The desk exerts an upward force on the box greater than the boxs weight. The desk exerts an upward force on the box equal to the boxs weight.

Question

9. Ahearyboxis pushed across the surface of a desk to the right. According to Newton's Laws of Motion which of the following statements is correct? The desk exerts an upward force on the box smaller than the box's weight. It is impossible to know how the upward force on the box compares to the box's weight. The desk exerts an upward force on the box greater than the boxs weight. The desk exerts an upward force on the box equal to the boxs weight.

Answer 1

The correct answer is: The desk exerts an upward force on the box equal to the box's weight.According to Newton's Third Law of Motion, for every action, there is an equal and opposite reaction. When the box is pushed across the surface of the desk, the desk exerts an upward force on the box to support it. This upward force is equal in magnitude and opposite in direction to the weight of the box, which is the force due to gravity acting on the box. Therefore, the upward force exerted by the desk on the box is equal to the box's weight.

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