A Thin, Massless String Is Wrapped Around a 0

question 37

Multiple Choice

A thin, massless string is wrapped around a 0.25 m radius grindstone supported by bearings that produce negligible frictional torque. A steady tension of 20 N in the string causes the grindstone to move from rest to a speed of 60 rad/s in 12 s. The moment of inertia of the grindstone is

• A) 1.0 kg · m².
• B) 2.0 kg · m².
• C) 3.0 kg · m².
• D) 4.0 kg · m².
• E) 5.0 kg · m².

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Definitions:

Downshift

To drop down a gear ratio.

Hydromechanical Transmission

A type of transmission that combines hydraulic and mechanical systems to transfer power from the engine to the wheels.

Inhibitor Valve

A valve that controls fluid flow in a system, specifically designed to prevent undesired operation or flow in certain conditions.