5. Torque and Rotational Dynamics

Connecting Linear And Rotational Motion — Quiz

Test your understanding of connecting linear and rotational motion with 5 practice questions.

Practice Questions

Question 1

A wheel rolls without slipping to the right. What is the relationship between the center-of-mass speed $v$ and the angular speed $\omega$ of the wheel?

Question 2

A point on the rim of a rotating disk is $0.20\,\text{m}$ from the axis. If the disk has angular speed $5\,\text{rad/s}$, what is the point’s tangential speed?

Question 3

If a rigid object has angular acceleration $\alpha$, what is the tangential acceleration $a_t$ of a point a distance $r$ from the rotation axis?

Question 4

Which quantity is the rotational analogue of mass in Newton’s second law for rotation?

Question 5

A force is applied perpendicular to a wrench handle at a distance $0.30\,\text{m}$ from the bolt. If the force is $20\,\text{N}$, what is the torque magnitude about the bolt?