TASK 2 mi li у wwwww X A block with mass mi lies on a carousel and is held to the axis of rotation z by a spring. When the carousel rotates, the block will move in a circular orbit with a constant radius R. M=1.2 kg; R= 1.2 m; Spring constant k = 120 N/m; Ax = 0.125 m a. Calculate the angular velocity of the circular motion when it is assumed that there is no friction between the blocks and carousel platform (surface). Now it is assumed that there is a friction between the block and the surface. Block and spring are unchanged. b. At an angular velocity of o = 4.5 radian/ second, as well as R= 1, 2m and Ax = 0.125 m it is desired to calculate the required static coefficient of friction u. between the block and the substrate.