Chapter 4, Problem 65P

A purse at radius 2.00 m and a wallet at radius 3.00 m travel in uniform circular motion on the floor of a merry-go-round as the ride turns. They are on the same radial line. At one instant, the acceleration of the purse is $(2.00{\text{ m/s}}^2\text{) <mover accent="true"> i <mo> ^ </mo> </mover> + (4}{\text{.00 m/s}}^2\text{) <mover accent="true"> j <mo> ^ </mo> </mover>}$. At that instant and in unit-vector notation, what is the acceleration of the wallet?