ROTATIONAL MOTION Quiz

• The magnitude of velocity
• The time taken to reach point P
• The perpendicular distance from O to the line of velocity
• The angular speed of the particle

• l = r + mv
• l = r × mv
• l = mv/r
• l = r – mv

• Internal forces dominate
• Torque is always zero
• External torque determines the rate of change of angular momentum
• Angular momentum is always increasing

• It increases
• It decreases
• It oscillates
• It does not change

• It gradually decreases
• It changes direction randomly
• It remains constant in magnitude and direction
• It becomes aligned with gravity