ROTATIONAL MOTION

Where is the direction of the angular velocity vector located in fixed-axis rotation?

• Tangential to the path
• Radially outward
• Opposite to force
• Along the axis of rotation

In pure translational motion, what is the nature of particle displacement?

• Displacement varies with mass
• Only center displaces
• Edge particles displace more
• All particles undergo the same displacement in the same time

What types of motion can a free rigid body (not fixed) exhibit?

• Only rotation
• Only vibration
• Only oscillation
• Pure translation or combination of translation and rotation

What determines the plane of circular motion for a particle in a rotating rigid body?

• Parallel to the axis
• At 45 degrees to the axis
• Tangential to the axis
• Perpendicular to the axis of rotation

What happens to angular speed when moment of inertia increases in an isolated rotating system?

• Angular speed increases
• Angular speed stays the same
• Angular speed becomes zero
• Angular speed decreases