Choose the FALSE statement about the forces acting on a rock that is sitting on the ground. A. The rock has no weight when it is motionless. B. The heavier the rock, the greater the normal force. C. The magnitude of the gravitational force and the normal force is the same. D. The direction of the gravitational force acting on the rock is opposite to the direction of the normal force acting on the rock.
Added by Cynthia C.
Step 1
The rock has no weight when it is motionless. This statement is false. The weight of an object is the force of gravity acting on it, which is always present regardless of whether the object is in motion or not. The weight of the rock is given by $W = mg$, where Show more…
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