Question

what happens when one force is balanced by a second force? a negative net force a change in motion no change in motion a positive net force

Explanation:

To determine the answer, we use the concept of balanced forces in physics. When two forces balance each other, the net force is zero. A net force of zero means there is no change in the object's motion (Newton's first law: an object at rest stays at rest, and an object in motion stays in motion with constant velocity unless acted upon by a net force).

• "A negative net force" is incorrect because balanced forces result in a net force of zero, not negative.
• "A change in motion" occurs when there is a net force (unbalanced forces), so this is incorrect.
• "A positive net force" is also incorrect for the same reason as the negative net force—balanced forces give a net force of zero.
• "No change in motion" is correct because balanced forces (net force = 0) mean the object's motion (speed and direction) remains unchanged.

Answer:

C. no change in motion (assuming the options are labeled A, B, C, D with C being "no change in motion" as per the order: first option A, second B, third C, fourth D)