ROTATIONAL MOTION

What is the result of the dot product ω · r in rotational motion?

• ωr
• -ωr
• 1
• Zero

What is the angle between the angular velocity vector ω and the position vector r in rotational motion?

• 0 degrees
• 180 degrees
• 45 degrees
• 90 degrees

What is the direction of the position vector r for a particle in rotational motion?

• From particle to origin
• Along the tangent
• Opposite to velocity
• From origin to the particle

Does the angular velocity depend on the choice of origin along the axis?

• Yes, always
• Only if origin is at center
• No, as long as it is on the axis
• Yes, if the body is asymmetric

What is the relationship between the planes of motion of different particles in a rotating rigid body?

• They intersect at the axis
• They are perpendicular to each other
• All are parallel to each other
• Random orientations