What Constant Torque,in the Absence of Friction,must Be Applied to a Wheel

question 3

Multiple Choice

What constant torque,in the absence of friction,must be applied to a wheel to give it an angular velocity of 50 rad/s if it starts from rest and is accelerated for 10 s? The moment of inertia of the wheel about its axle is 9.0 kg · m².

• A)4.5 N · m
• B)9.0 N · m
• C)45 N · m
• D)30 N · m
• E)60 N · m

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Definitions:

Pulmonary Trunk

The blood vessel that carries blood from the right ventricle of the heart to the lungs for oxygenation.

Inferior Venae Cavae

A large vein that carries deoxygenated blood from the lower half of the body to the right atrium of the heart.

Pulmonary Veins

Blood vessels that carry oxygenated blood from the lungs to the left atrium of the heart.

Mitral Valve

A valve in the heart that lies between the left atrium and left ventricle, regulating blood flow and preventing backflow.