Conceptual Dynamics - Independent Learning

General Planar Motion


Relative velocity and acceleration


The velocity and acceleration of a point A on a body undergoing general planar motion is equal to the translation of a reference point B plus the rotation of point A around the reference point B.


vA = vB + vA/B = vB + ω x rA/B              aA = aB + (aA/B)t + (aA/B)n = aB + α x rA/B - ω2rA/B