A String Is Wrapped Around a Pulley of Radius 0

question 25

Multiple Choice

A string is wrapped around a pulley of radius 0.05 m and moment of inertia 0.2 kg . m². If the string is pulled with a force , the resulting angular acceleration of the pulley is 2 rad/s². Determine the magnitude of the force .

• A)0.4 N
• B)2 N
• C)8 N
• D)16 N
• E)40 N

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Definitions:

Aerobic Respiration

The process of producing cellular energy involving oxygen. It's used by cells to convert glucose into energy.

Cardiac Muscle Cells

Specialized, striated muscle cells found in the heart, responsible for pumping blood throughout the body through involuntary contractions.

Mitochondria

Organelles found in the cytoplasm of eukaryotic cells that are involved in energy production through the process of oxidative phosphorylation.

Depolarization

The process of reduction in electric charge across a cell membrane, typically initiating a neural impulse or muscle contraction.