ROTATIONAL MOTION

When is the vector ω × r maximum in magnitude?

• When r is parallel to ω
• When r is zero
• When ω is zero
• When r is perpendicular to ω

In the context of a rotating rigid body, what does the vector r represent in v = ω × r?

• Radius of curvature
• Distance from center of gravity
• Moment arm
• Position vector from origin to the particle

What is the significance of the expression ω × (OC + CP) in rotational kinematics?

• It calculates mass distribution
• It measures angular displacement
• It balances forces
• It leads to the derivation of v = ω × r

For a particle in circular motion, what is the relationship between v and ω?

• v = ω + r
• v = ω · r
• v = r / ω
• v = ω × r

What does the equation v = ω × r represent in rotational motion?

• Angular acceleration
• Centripetal force
• Torque
• The linear velocity of a rotating particle