PP-4 A round object of mass m3D2.00kg and radius 0.200m that could be a disk, solid sphere or a hollow sphere is attached to a string of negligible mass that is 0.300m long. When pushed 5.00° from the vertical and released, as shown in the figure to the right, the object swings back and forth making exactly 5 round trips in 7.32 seconds. a) Find the moment of inertia of this object about the pin. b) Is this object a solid disk, a solid sphere or a hollow sphere? For a solid disk, I=MR?; for a solid sphere I=MR' and for a pin L-0.300m R=0.200m hollow sphere MR. Clearly show all work to get your answer.
PP-4 A round object of mass m3D2.00kg and radius 0.200m that could be a disk, solid sphere or a hollow sphere is attached to a string of negligible mass that is 0.300m long. When pushed 5.00° from the vertical and released, as shown in the figure to the right, the object swings back and forth making exactly 5 round trips in 7.32 seconds. a) Find the moment of inertia of this object about the pin. b) Is this object a solid disk, a solid sphere or a hollow sphere? For a solid disk, I=MR?; for a solid sphere I=MR' and for a pin L-0.300m R=0.200m hollow sphere MR. Clearly show all work to get your answer.
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