The Height H (In Feet)of a Falling Object Above the Ground

question 40

Multiple Choice

The height h (in feet) of a falling object above the ground at time t (in seconds) is modeled by $h = h _ { 0 } - 16 t ^ { 2 }$ , where $h _ { 0 }$ is the initial height. Find the time (in seconds) it takes for an object to fall to the ground if the initial height is 630 feet. Round your answer to two decimal places.

• A) 19.69 seconds
• B) 4.44 seconds
• C) 1.59 seconds
• D) 6.27 seconds
• E) 12.55 seconds

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Definitions:

Aorta

The largest artery in the body, transporting oxygen-rich blood from the left ventricle of the heart to various parts of the body.

Left Ventricle

The chamber of the heart that receives oxygenated blood from the left atrium and pumps it out under high pressure through the aorta to circulate throughout the body.

Oxygen-poor Blood

Refers to blood with a lower than normal oxygen content, usually returning to the heart from various parts of the body.

Superior and Inferior

Terms used to describe the relative position of body parts, with 'superior' meaning higher or above and 'inferior' meaning lower or below.