ROTATIONAL MOTION Quiz

• The body is spherical
• The body is symmetric about the rotation axis
• The mass is zero
• The velocity is constant

• They are unrelated
• dL_z/dt = τ_z is the rotational analog
• L_z = F r
• τ = m a r

• It has no role
• It defines the reference point for position vectors
• It determines mass
• It sets the time

• Temperature
• External force
• Symmetry of the body about the rotation axis
• Linear speed

• The body is translating
• The torque is zero
• The body is symmetric and rotating about a symmetry axis
• The angular velocity is changing