inakachukwu Osungwu: Attempt 1 Consider a cylinder of radius r, mass m and inert
ID: 1767436 • Letter: I
Question
inakachukwu Osungwu: Attempt 1 Consider a cylinder of radius r, mass m and inertia 7 (about its centre of mass) as well as each of the following three scenarios: Scenario 1: The cylinder is rolling without slip on a flat surface with an angular velocity w. Scenario 2: The cylinder is in a free fall with a velocity ?? of its centre of mass and no angular velocity Scenario 3: The cylinder is rotating about a fixed pivot with an angular velocity . If 7 m/2 and w-20 (in terms of magnitudes only, don't worry about units), sort the above mentioned scenarios in order of increasing kinetic energy of the cylinder A. 1,23 B. 1,32 C. 2,13 D. 2,3,1 E 3,12 F. 3,2,1 PrtSc Insert F12 Impr Ecr. Ins Suppr. NumExplanation / Answer
Correct Option is C) Order is 2 1 3
When a cylinder is falling then the Kinetic Enenrgy of Cylinder is converted into Potential Energy
When cylindrical shell rolling without slipping on a Flat surface, half of the total kinetic energy is translational and half is rotational.
Kinetic Enenrgy =0.5* (1/2 I ?2)
When a Cylinder is rotating abount the Pivot the Kinetic Energy is maximum among the above and it is (1/2 I ?2)
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