Conceptual Dynamics - Independent Learning

Pure Rotation

 

Velocity and acceleration of a point

 

  • Velocity: The velocity of a point on a rigid body undergoing pure rotation depends on
    • the angular velocity of the body (ω), and
    • the distance of the point from the fixed axis (r).

 

vA = rAω et

 

  • Acceleration: The acceleration of a point on a rigid body undergoing pure rotation depends on
    • the angular velocity and angular acceleration of the body (ω, α), and
    • the distance of the point from the fixed axis (r).

 

aA = rAα et + rAω2 en