A Ball Is Shot Straight Up from the Surface of the Earth

question 58

Multiple Choice

A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s. Neglect any effects due to air resistance.
-How much time elapses between the throwing of the ball and its return to the original launch point?

• A)4.00 s
• B)2.00 s
• C)12.0 s
• D)8.00 s
• E)16.0 s

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Definitions:

Circadian Rhythms

Biological processes that display an endogenous, entrainable oscillation of about 24 hours, regulating the sleep-wake cycle among other bodily functions.

Advanced Sleep Phase Syndrome

A circadian rhythm disorder characterized by earlier than desired sleep onset and wake times, often resulting in evening sleepiness and morning alertness.

Biological Rhythm

Natural cycles of physical, emotional or mental activity in living beings, often aligned with daily, tidal, seasonal, or lunar cycles.

Rotational Schedule

A work or duty schedule that rotates employees through different tasks, shifts, or positions over a certain period.