Solve
-The Distance $s ( t )$ , in Feet Traveled by a Freely Falling Object Is

question 235

Multiple Choice

Solve.
-The distance, $s ( t )$ , in feet traveled by a freely falling object is given by the function $s ( t ) = 16 t ^ { 2 }$ , where $t$ is time in seconds. Use this formula to find the time it would take for an object to fall to the ground from a cliff that is 1600 feet high.

• A) \(100 \mathrm { sec }\)
• B) \(9 \mathrm { sec }\)
• C) \(11 \mathrm { sec }\)
• D) \(10 \mathrm { sec }\)

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Definitions:

Absolute Threshold

The minimum intensity of a stimulus that is required for the stimulus to be detected at least 50% of the time.

Just Noticeable Difference Threshold

The minimum difference in intensity between two stimuli required for the difference to be detected at least half the time.

Ultraviolet

A type of electromagnetic radiation with wavelengths shorter than those of visible light but longer than those of X-rays.

Infrared

Electromagnetic radiation with wavelengths longer than those of visible light but shorter than those of microwaves, used in various technologies including remote controls and thermal imaging.