A Student in an Elevator Is Checking Newton's Laws Using

question 4

Multiple Choice

A student in an elevator is checking Newton's laws using a scale. The scale is showing a reading lower than the student's actual weight. Which one of these statements explains this phenomenon?

• A)The elevator moves upward with constant speed.
• B)The elevator moves downward with constant speed.
• C)The elevator moves upward with decreasing speed.
• D)The elevator moves downward with decreasing speed.

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Definitions:

Diathermy

A medical and surgical technique involving the use of high-frequency electric currents to heat deep muscular tissues, reducing pain and improving circulation.

Therm

A unit of heat energy, equivalent to 100,000 British thermal units (BTUs), used mainly for heating.

Hemopoiesis

The production of all types of blood cells in the bone marrow, including red blood cells, white blood cells, and platelets.

Muscular System

The biological system that comprises of all the muscles in the body and enables movement, both voluntary and involuntary, as well as posture maintenance.