5. Rotation Dynamics

Rotational Kinematics — Quiz

Test your understanding of rotational kinematics with 5 practice questions.

Practice Questions

Question 1

What is the SI unit for angular acceleration?

Question 2

If an object's angular position is given by $\theta(t) = 2t^3 - 4t + 1$ (in radians), what is its angular acceleration at $t = 2 \text{ s}$?

Question 3

A merry-go-round starts from rest and accelerates uniformly to an angular velocity of $0.5 \text{ rad/s}$ in $10 \text{ s}$. What is its angular displacement during this time?

Question 4

A point on the rim of a rotating wheel has a linear speed of $2 \text{ m/s}$. If the wheel has a radius of $0.5 \text{ m}$, what is the angular velocity of the wheel?

Question 5

Which of the following rotational kinematic equations is analogous to the linear kinematic equation $x = x_0 + v_0t + \frac{1}{2}at^2$?