A point oscillates along the x axis according to the law x = a cos (wt =

Question:

A point oscillates along the x axis according to the law x = a cos (wt = π/4).
Draw the approximate plots
(a) Of displacement x, velocity projection Vx, and acceleration projection Wx as functions of time t;
(b) Velocity projection Vx and acceleration projection wx as Junctions of the coordinate x.