Rotational motion quiz
Five questions on Rotational motion. Answer all 5 to see your score.
Question 1 of 5
A wheel of radius 0.25 m rolls without slipping at a steady 5.0 m/s. What is its angular speed?
Question 2 of 5
A disk with moment of inertia 0.50 kg·m^2 spins up with angular acceleration 4.0 rad/s^2. What net torque acts on it?
Question 3 of 5
A skater spins at 4.0 rad/s with moment of inertia 3.0 kg·m^2. She pulls her arms in, reducing her moment of inertia to 1.2 kg·m^2. What is her new angular speed?
Question 4 of 5
A light rod carries a 4.0 kg mass 0.50 m from the rotation axis and a 1.0 kg mass 2.0 m from the axis, on the other side. What is the moment of inertia about that axis?
Question 5 of 5
A uniform rod of mass 2.0 kg and length 1.2 m rotates about one end. Given that the rod's moment of inertia about its center is ML^2/12, what is its moment of inertia about the end?