Skip to content

Menu

Game modes

Account

← Rotational Motion
GK QUESTION#3130

In the case of a rigid body rotating about a fixed axis, the angular velocity of every particle in the body is:

  1. ADirectly proportional to its distance from the axis of rotation
  2. BEqual to zero for all particles
  3. CInversely proportional to its distance from the axis of rotation
  4. DThe same for all particles of the bodyCorrect answer
Show AnswerHide Answer

Answer

D. The same for all particles of the body

Show ExplanationHide Explanation

Explanation

In rotation of a rigid body about a fixed axis, all parts share the body’s angular velocity at a given instant. Linear speed isv=ωr for a point a perpendicular distancer from that axis; it is zero on the axis. Equal angular velocity does not imply equal linear speed.

Sign in to report a question issue