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System Of Particles And Rotational Motion

Types of motion

  • Translational Motion
    • Motion of a rigid body along a staright line path.
    • All the particles of the body move together i.e, they have the same velocity at any instant of time.
 
  • Rotational Motion
    • Motion of rigid body about a fix point.
    • Every particle of the body moves in concentric circles about the fix point.
 
  • Combination of translational and rotational motion
    • Motion of body in which body rotates while moving.
    • Motion of a tyer on the road.
 

 

  • Centre of mass of a body is a point at which the whole mass of the body is supposes to be concentrated.  
  • Position of centre of mass of discreet distribution of mass

          

  • Position of centre of mass of continuous distribution of mass

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