A roll of paper is rolled to the ground, leaving paper behind when rolling. The remaining paper remains stationary on the floor. The roller was given a starting speed of V = 2.4 m / s. The initial radius of the roller is R = 1 m. When the radius of the roller is r = 0.6 m, find the V speed of the roller in m / s. Assume that roll rolls do not slip and gravity acts on the roll. Let's also assume that the mass distribution of the paper in the roll is homogeneous. (Get G = 10 m / s ^ 2)