Miyagi Entrance Science Practice Questions - Miyagi Public High School Entrance Selection - Science Exam

A 3 kg box rests stationary on a horizontal floor. Which statement about the forces on the box is correct?

The upward normal force from the floor equals the downward gravitational force, so the net force is zero. The upward normal force is greater than gravity, preventing the box from sinking. The downward gravitational force is greater than the normal force, keeping the box pressed down. No forces act on the box because it is not moving.

Correct Answer:

The upward normal force from the floor equals the downward gravitational force, so the net force is zero.

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