ROTATIONAL MOTION

If angular acceleration is zero, what is the nature of angular velocity?

• Increasing
• Decreasing
• Zero
• Constant

How is the average angular velocity defined for a given time interval?

• (ω₁ + ω₂)/2
• θ/t
• (θ₂ − θ₁)/(t₂ − t₁)
• Δω/Δt

What is the angular displacement of a body that completes two full revolutions?

• 2π radians
• π radians
• 4π radians
• 360 degrees

If a spinning top slows down uniformly, what can be said about its angular acceleration?

• It is zero
• It is positive
• It is infinite
• It is negative

Which of the following is NOT a requirement for using rotational kinematic equations?

• Constant angular acceleration
• Initial angular velocity known
• Presence of external torque
• Time interval known