ROTATIONAL MOTION

Which of the following best describes uniform rotational motion?

• Rotation with constant angular acceleration
• Rotation with increasing speed
• Rotation with constant angular velocity
• Rotation with zero displacement

What is the angular displacement of a wheel that turns through 90 degrees?

• π/4 radians
• π/2 radians
• π radians
• 2π radians

If a rotating object has an angular acceleration of 3 rad/s², how much does its angular velocity increase in 4 seconds?

• 7 rad/s
• 12 rad/s
• 3 rad/s
• 4 rad/s

What is the angular velocity of a body that completes 10 revolutions in 5 seconds?

• 2π rad/s
• 4π rad/s
• 10π rad/s
• 5 rad/s

In the absence of angular acceleration, how does angular displacement vary with time?

• Quadratically
• Exponentially
• Linearly
• Logarithmically