This operation is applied to the action on the left hand side of the Hamilton-Jacobi equation. When applying this operation to a vector in a rotating reference frame, one must the angular velocity crossed with the vector to a term equal to this operation in an inertial frame. This operation is applied to the derivative of the (*) Lagrangian with respect to a generalized velocity in the Euler-Lagrange equations. Quantities like the jerk, snap, crackle, and pop (10[1])are defined by successively applying this operation to position. Following Newton’s method of fluxions, an overdot is often used to represent this operation in classical mechanics. For 10 points, the velocity is obtained by applying what operation to the position vector? ■END■