When a 45-Kg Person Steps on a Scale in an Elevator,the

question 54

Multiple Choice

When a 45-kg person steps on a scale in an elevator,the scale reads a steady 480 N.Which of the following statements must be true? (There could be more than one correct choice.)

• A)The elevator is accelerating upward at a constant rate.
• B)The elevator is accelerating downward at a constant rate.
• C)The elevator is moving upward at a constant rate.
• D)The elevator is moving downward at a constant rate.
• E)From the given information, we cannot tell if the elevator is moving up or down.

---

Definitions:

Musculoskeletal

Pertaining to the system of bones, muscles, and other components that support the body and allow movement.

Cardiomyopathy

A group of diseases that affect the heart muscle, potentially leading to heart failure and other complications.

Neurological

Pertaining to neurology, the branch of medicine concerned with the study and treatment of disorders of the nervous system.

Nephrology

The medical field that specializes in identifying and managing illnesses of the kidneys.