일반물리학 1 — Motion in Two and Three Dimensions: Problem 65

65 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 \((2.00 \text{ m/s}^2)\hat{i} + (4.00 \text{ m/s}^2)\hat{j}\). At that instant and in unit-vector notation, what is the acceleration of the wallet?