Question 66
A torque of 15 N·m acts for 4 seconds. What is the change in angular momentum?
Question 67
What is angular momentum of a body with I = 3 kg·m² and ω = 4 rad/s?
Question 68
What is the kinetic energy of rotation for a body with I = 4 kg·m² and ω = 5 rad/s?
Question 69
A rotating platform has a child moving from edge to center. What happens to angular speed?
Question 70
A figure skater pulls arms in while spinning. What happens to angular speed?