5. Torque and Rotational Dynamics

Newton’s Second Law In Rotational Form — Quiz

Test your understanding of newton’s second law in rotational form with 5 practice questions.

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Practice Questions

Question 1

Which equation is the rotational form of Newton’s Second Law for a rigid object?

Question 2

What does $\tau_{net}$ represent in rotational dynamics?

Question 3

In the equation $\tau_{net} = I\alpha$, what does $I$ represent?

Question 4

If the net torque on an object is $0$, what must its angular acceleration be, assuming $I$ is not $0$?

Question 5

A wheel has moment of inertia $I = 2\,\text{kg}\cdot\text{m}^2$ and net torque $\tau_{net} = 6\,\text{N}\cdot\text{m}$. What is its angular acceleration $\alpha$?