The Figure Shows the Speed as a Function of Time

question 43

Multiple Choice

The figure shows the speed as a function of time for an object in free fall near the surface of the earth. The object was dropped from rest in a long evacuated cylinder.
-What is the speed of the object 3.0 seconds after it is dropped?

• A)3.0 m/s
• B)7.7 m/s
• C)9.8 m/s
• D)29 m/s
• E)This cannot be determined since there is no specified value of height.

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Definitions:

Conchae

Curved bones in the nasal cavity that help to filter, warm, and moisten the air before it enters the lungs.

Tracheotomy

A surgically made opening in the trachea through which a person will breathe.

Intubation

The insertion of a tube into a patient's airway to maintain an open airway or administer certain drugs.

Conchae

Curved shelves of bone located inside the nasal cavity that increase its surface area for the purpose of warming, moisturizing, and filtering the air breathed in through the nose.