ROTATIONAL MOTION

What is the velocity of a particle located exactly on the axis of rotation during rotational motion?

• Equal to ωr
• Maximum velocity
• Half of center's velocity
• Zero

What is the condition for a rigid body to undergo pure rotational motion?

• It must be spherical
• It must be in a vacuum
• It must be constrained so it cannot translate
• It must be lightweight

What is the key difference between the motion of a sliding block and a rolling cylinder on an incline?

• Sliding is faster
• Rolling has less mass
• The sliding block has uniform velocity across all particles, while the cylinder does not
• Sliding requires more energy

What is the nature of motion of a rigid body if all its particles move in parallel paths with identical velocities?

• Rotational motion
• Rolling motion
• Pure translational motion
• Random motion

How does the velocity of the topmost point of a rolling cylinder compare to the center?

• It is half the velocity of the center
• It is the same as the center
• It is zero
• It is twice the velocity of the center