Starting from Rest, a Disk Rotates with Constant Angular Acceleration

question 44

Multiple Choice

Starting from rest, a disk rotates with constant angular acceleration. If it takes 10 rev to reach an angular velocity , then how many additional revolutions are required to reach an angular velocity 2?

• A) 10 rev
• B) 20 rev
• C) 30 rev
• D) 40 rev
• E) 50 rev