Five Boxes, Each Having Weight 100 N, Are Stacked Up

question 75

Multiple Choice

Five boxes, each having weight 100 N, are stacked up. The bottom box is the fifth from the top. What is the magnitude of the normal force upward exerted by the third box from the top on the second box from the top?

• A) 100 N
• B) 200 N
• C) 300 N
• D) 400 N

---

Definitions:

Erectile Problems

Difficulties in achieving or maintaining an erection, potentially affecting sexual performance.

Dilated

Expanded or widened in diameter; often used in medical contexts to describe pupils of the eye or blood vessels.

Arteries

Blood vessels that carry oxygen-rich blood away from the heart to the body's tissues and organs.

Benign Tumors

Non-cancerous growths in the body that are usually localized and do not spread to other parts, often not posing a serious health risk.