Kinematics 86-1 Description of the motion of a particle using a vector of position 1. Equation of motion trajectory(path) M =OM r(t) 2. velocity of a particle r(t+△) v=lim F A→0tadt 3. Acceleration of a particle a= lim= →0 dt dt dt29 1. Equation of motion, trajectory (path) 2.Velocity of a particle 3. Acceleration of a particle r OM r dt d r Δt Δ r v Δt      0 lim r dt d r dt dv Δt Δ v a Δt       2 2 0 lim §6-1 Description of the motion of a particle using a vector of position