ROTATIONAL MOTION

In the ladder problem, what would happen if the floor were frictionless?

• The ladder would become more stable
• The ladder would slide toward the wall
• The ladder would rotate clockwise
• The ladder would slide away from the wall

What is the condition for a rigid body to be in complete static equilibrium?

• Only translational equilibrium
• Only rotational equilibrium
• Translational and rotational equilibrium must both hold
• Net force must be zero only

Which physical quantity in rotational motion is analogous to velocity in linear motion?

• Torque
• Force
• Angular momentum
• Angular velocity

How does the kinetic energy of a rotating body change if its angular velocity is doubled?

• It doubles
• It becomes four times
• It remains the same
• It halves

What is the SI unit of rotational kinetic energy?

• Watt
• Newton
• Joule
• kg·m/s