Question

what happens when unbalanced forces act on an object at rest? * 8 points 340 n 450 n the object remains at rest the object begins moving in an unpredictable direction the object begins moving in the direction of the net force the object begins moving opposite to the direction of net force

Explanation:

To solve this, we recall Newton's laws of motion. Unbalanced forces mean a net force exists. When unbalanced forces act on a stationary object, the object accelerates in the direction of the net force (since \( F_{net}=ma \), so acceleration \( a \) is in the direction of \( F_{net} \), and velocity will follow that direction).

• Option 1: Incorrect, as unbalanced forces cause a change in motion (Newton's 1st law: balanced forces keep rest/motion, unbalanced change it).
• Option 2: Incorrect, the direction is predictable (direction of net force, not random).
• Option 3: Correct, because the net force determines the direction of acceleration (and thus motion starts in net force's direction).
• Option 4: Incorrect, motion is in net force's direction, not opposite.

Answer:

the object begins moving in the direction of the net force