A Ball Is Thrown Upward into the Air with a Speed

question 30

Multiple Choice

A ball is thrown upward into the air with a speed that is greater than terminal speed.On the way up it slows down and, after its speed equals the terminal speed but before it gets to the top of its trajectory:

• A)its speed is constant
• B)it continues to slow down
• C)it speeds up
• D)its motion becomes jerky
• E)none of the above

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Definitions:

Tidal Volume

The volume of air moved into or out of the lungs during normal breathing.

Inspiratory Reserve Volume

The additional amount of air that can be inhaled after a normal inhalation, increasing lung volume.

Expiratory Reserve Volume

The maximum volume of air that can be forcibly exhaled after the completion of a normal, quiet exhalation.

Total Lung Capacity

The maximum amount of air the lungs can hold, including inspiratory and expiratory reserve volumes and the tidal volume.