A Window Washer's Bucket Falls Off a Scaffold 248 Feet

question 34

Multiple Choice

A window washer's bucket falls off a scaffold 248 feet above the street. Its height in feet, t seconds after it falls, can be modeled by . Find the limit of the difference quotient for d, to obtain a function that represents the instantaneous velocity of the bucket at time t. Use the results to find the instantaneous velocity of the bucket at t = 3.

• A) ; -344 ft/sec
• B) ; 152 ft/sec
• C) ; -112 ft/sec
• D) ; -96 ft/sec

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Definitions:

Subnormal

Below the normal or average level, often relating to temperature, intelligence, or health status.

Tachypnea

Increased rate of respiration.

Bradypnea

An abnormally slow rate of respiration.

Dyspnea

A medical term for difficulty in breathing or shortness of breath, a symptom of various underlying health conditions.