Problem 4.1

A point oscillates along the \(x\) axis according to the law \(x\) \(=a \cos (\omega t-\pi / 4) .\) Draw the approximate plots (a) of displacement \(x\), velocity projection \(v_{x}\), and acceleration projection \(w_{x}\) as functions of time \(t\) (b) velocity projection \(v_{x}\) and acceleration projection \(w_{x}\) as functions of the coordinate \(x\).