Question

look at each net force diagram. check the boxes that correctly describe the net force diagram.
net force diagram
four force diagrams with squares and arrows labeled 6n, 3n; 4n, 2n, 5n; 4n, 4n; 6n, 3n
balanced
four checkboxes
unbalanced
four checkboxes
no change in motion
four checkboxes
change in motion
four checkboxes

Explanation:

Step1: Analyze 1st Diagram (6N up, 3N down)

Net force: \( 6 - 3 = 3 \, \text{N} \) up. Unbalanced (net force ≠ 0), so change in motion.

Step2: Analyze 2nd Diagram (4N down, 2N down, 5N up)

Net force: \( (4 + 2) - 5 = 1 \, \text{N} \) down. Unbalanced, change in motion.

Step3: Analyze 3rd Diagram (4N down, 4N up)

Net force: \( 4 - 4 = 0 \, \text{N} \). Balanced, no change in motion.

Step4: Analyze 4th Diagram (6N down, 3N down)

Net force: \( 6 + 3 = 9 \, \text{N} \) down. Unbalanced, change in motion.

Answer:

• 1st Diagram: Unbalanced (✓), Change in Motion (✓)
• 2nd Diagram: Unbalanced (✓), Change in Motion (✓)
• 3rd Diagram: Balanced (✓), No Change in Motion (✓)
• 4th Diagram: Unbalanced (✓), Change in Motion (✓)