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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