A String Is Wrapped Tightly Around a Fixed Pulley That

question 18

Multiple Choice

A string is wrapped tightly around a fixed pulley that has a moment of inertia of 0.0352 kg m² and a radius of 12.5 cm. The string is pulled away from the pulley with a constant force of 5.00 N. As the string unwinds the pulley begins to rotate. What is the speed of the string after it has unwound 1.25 m?

• A) 2.09 m/s
• B) 2.36 m/s
• C) 1.18m/s
• D) 3.18 m/s
• E) 4.95 m/s

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Definitions:

Liver

The largest gland in the body, located in the upper right quadrant of the abdomen beneath the diaphragm.

Total Cholesterol

The sum of all types of cholesterol in the blood, including low-density lipoprotein (LDL), high-density lipoprotein (HDL), and triglycerides.

Fasting

Voluntarily abstaining from food and/or drink for a specific period for health, religious, or other reasons.

Mg/dL

Milligrams per deciliter, a unit of measurement often used in medical tests to express the concentration of a substance in a fluid.