A top of rotational inertia 4.0 kg m² receives a torque of 2.4 Nm from a physics professor. The angular acceleration of the body will be A) 1.2 rev/s². B) 6.0 rad/s². C) 1.0 rad/s². D) 6.0 rev/s². E) 0.6 rad/s².

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Quizplus · Accepted Answer

The angular acceleration ($\alpha$) can be calculated using the formula $\alpha = \frac{\tau}{I}$, where $\tau$ is the torque (2.4 Nm) and $I$ is the moment of inertia (4.0 kg m^2). Thus, $\alpha = \frac{2.4}{4.0} = 0.6$ rad/s^2.

A Top of Rotational Inertia 4