The moment of inertia of a wheel is 10 kg.m^2. The wheel starts from rest and accelerates under the action of a constant torque of 3.0 N.m for 8.0 s. What is the rotational kinetic energy of the wheel at the end of the 8 s?

The moment of inertia of a wheel is 10 kg.m^2. The wheel starts from rest and accelerates under the action of a constant torque of 3.0 N.m for 8.0 s. What is the rotational kinetic energy of the wheel at the end of the 8 s?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section10.4: Rotational Kinetic Energy

Problem 10.4QQ

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Question

The moment of inertia of a wheel is 10 kg.m^2. The wheel starts from rest and
accelerates under the action of a constant torque of 3.0 N.m for 8.0 s. What is
the rotational kinetic energy of the wheel at the end of the 8 s?
56.6 J
28.8 J
64 J
128 J
14.4 J

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