Suppose you’re eating in a restaurant where the dishes are shared at the table and all placed uniformly on a
rotating disk-like surface. Model this surface as a thin disk of radius 38.8 cm. You can’t stop thinking about physics even though you’re out with your friends, and decide to calculate the mass of the rotating surface and all the food. If the surface is initially at rest and you exert a tangential force of 2.2 N on it, you observe that the food rotates at a speed of 1.3 rev/s after applying the force consistenty for 1.5 seconds. Find the mass of the disk wtih the food, in kg.