The Diagram Shows a Velocity-Time Graph for a Car Moving

question 41

Multiple Choice

The diagram shows a velocity-time graph for a car moving in a straight line. At point Q the car must be:

• A) moving with zero acceleration
• B) traveling downhill
• C) traveling below ground-level
• D) reducing speed
• E) traveling in the reverse direction to that at point P

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Definitions:

Simple Cuboidal Epithelium

Simple cuboidal epithelium is a type of single-layered tissue consisting of cube-shaped cells, commonly found lining glands and ducts, serving both secretory and absorptive functions.

Urethra

the tube that conveys urine from the bladder to the outside of the body.

Peristaltic Waves

Sequential muscle contractions that occur in the digestive tract, moving food through the esophagus to the stomach and intestines.

Erythropoietin

A hormone produced mainly by the kidneys that promotes the formation of red blood cells in the bone marrow.