A Ball Is Thrown Vertically Upward with an Initial Speed

question 19

Multiple Choice

A ball is thrown vertically upward with an initial speed of 20 m/s. Two seconds later, a stone is thrown vertically (from the same initial height as the ball) with an initial speed of 24 m/s. At what height above the release point will the ball and stone pass each other?

• A) 17 m
• B) 21 m
• C) 18 m
• D) 27 m
• E) 31 m

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Definitions:

Oscillation

A repetitive variation or fluctuation, typically in time, of a system about a central value or between two or more different states.

Eyes

Organs of the visual system that allow one to perceive light and convert it into electrochemical signals for interpretation by the brain.

Palpebral Conjunctiva

Conjunctiva that covers the inner surface of the eyelids.

Anterior Sclera

The front part of the sclera, the white outer coating of the eyeball, visible when looking at the eye.