A rounded object with 2 kg mass and 10 cm radius is released from rest at the top of 14 m tall incline with a 30 angle, and coefficients of friction #, = 0.4 and #* = 0.2. a) At the bottom of the incline the linear speed is 14 m/s. Is the object a solid sphere, a disc, or a spherical shell? b) Suppose we increase the angle of the incline above 30. At what angle will the object start to slide instead of roll