ROTATIONAL MOTION

How many scalar equations correspond to the vector equation Στi = 0?

• One
• Two
• Three
• Six

How many scalar equations correspond to the vector equation ΣFi = 0?

• One
• Two
• Three
• Four

What is the vector equation for rotational equilibrium?

• ΣFi = 0
• Σpi = 0
• ΣLi = 0
• Στi = 0

What is the condition for rotational equilibrium of a rigid body?

• The total force is zero
• The linear momentum is zero
• The total torque on the body is zero
• The angular velocity is zero

What does rotational equilibrium imply for a rigid body?

• The body is not rotating
• The total angular momentum does not change with time
• The moment of inertia is constant
• The torque is maximum