A Rock Is Thrown Downward from an Unknown Height Above

question 24

Multiple Choice

A rock is thrown downward from an unknown height above the ground with an initial speed of 10 m/s. It strikes the ground 3.0 s later. Determine the initial height of the rock above the ground.

• A) 44 m
• B) 14 m
• C) 74 m
• D) 30 m
• E) 60 m

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Definitions:

Herniated Disk

A condition where a disk in the spine slips or ruptures, potentially pressing on nearby nerves and causing pain or other symptoms.

Ethmoidal

Pertaining to the ethmoid bone, a spongy, cubical bone contributing to the structure of the nasal cavity and the orbits of the eyes.

Sphenoidal

Pertaining to the sphenoid bone, often referencing the sphenoidal sinus located within this bone.

Frontal

Referring to the forehead or the front part of something, particularly the frontal lobe of the brain which is involved in decision making, problem solving, and controlling behavior.