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omework Assignment 1 Question 2 of 2 - /1 ... Three objects lie in the x, y plane. Each rotates about the z axis with an angular speed of 3.28 rad/s. The mass m of each object and its perpendicular distance r from the z axis are as follows: (1) m1 = 6.70 kg and r1 = 6.80 m, (2) m2 = 3.60 kg and r2 = 1.60 m, (3) m3 = 6.70 kg and r3 = 9.00 m. Find the tangential speed of (a) object 1, (b) object 2, and (c) object 3. (d) Determine the total kinetic energy of this system using the expression KE = -m1012 + 2m2022 + 2m3032. (e) Find the rotational kinetic energy of the system using the relation - za to verify that the answer is the same as that in (d). (a) Number Units (b) Number Units (c) Number Units (d) Number Units (e) Number i Units e Textbook and Media