An object is assembled using a plastic stick with a length of d has a cube with a mass

An object is assembled using a plastic stick with a length of d has a cube with a mass of m placed at the ends of the stick. The stick-cube assembly is placed on a light swivel. Another cube with a mass of 2m is tied to a thin cord and connected to the swivel. Starting with an initial velocity of zero, the hanging cube is allowed to move downward causing the assembly to rotate. The assembly has a rotational inertia of 12md2. Consider the stick-cube assembly and hanging mass to be a system. Express all answers in terms of quantities given and fundamental constants.
(a) The hanging cube moves a distance y to the floor. Determine whether the rotational kinetic energy of the stick-cube assembly is greater than, equal to, or less than the quantity 2mgy.
_____ Greater than 2mgy _____ Equal to 2mgy _____ Less than 2mgy
Justify your answer.
(b) Determine the angular speed of the stick-cube assembly.
(c) Determine the impulse applied to the stick-cube assembly.
(d) Suppose the swivel has significant mass. Determine whether the predicted answer in part (a) would be different. Explain your response.

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