Solve the Problem. -A Construction Crane Lifts a Bucket of Sand Originally Weighing

question 151

Multiple Choice

Solve the problem.
-A construction crane lifts a bucket of sand originally weighing 135 lb at a constant rate. Sand is lost from the bucket at a constant rate of 0.5 lb/ft. How much work is done in lifting the sand 70 ft? (Neglect the weight of
The bucket.)

• A) 7000 ft · lb
• B) 8225 ft · lb
• C) 9450 ft · lb
• D) 10,675 ft · lb

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Definitions:

Stem-and-Leaf Display

A method of displaying quantitative data to show its distribution by dividing each value into a "stem" (the leading digits) and a "leaf" (the last digit).

Diastolic Blood Pressures

The pressure in the arteries when the heart rests between beats, indicative of cardiovascular health and used in diagnosing hypertension.

Mm Hg

Millimeters of mercury; a unit of pressure commonly used in medicine and meteorology to measure blood pressure and atmospheric pressure, respectively.

Uniform

Characterized by being the same in all situations, without variation or diversity in detail or condition.