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LoginA solid cylinder of mass 20 kg rotates about its axis with angular speed 100 rad s–1. The radius of the cylinder is 0.25 m. What is the kinetic energy associated with the rotation of the cylinder? What is the magnitude of angular momentum of the cylinder about its axis?
Physics Secondary School in Physics 1 year ago
tion:Mass of the cylinder, m = 20 kgAngular speed, ω = 100 RAD s–1Radius of the cylinder, R = 0.25 mThe moment of inertia of the solid cylinder:I = mr2 / 2= (1/2) × 20 × (0.25)2= 0.625 kg m2∴ Kinetic energy = (1/2) I ω2= (1/2) × 6.25 × (100)2 = 3125 J∴Angular momentum, L = Iω= 6.25 × 100 = 62.5 Js
Posted on 13 Sep 2024, this text provides information on Physics related to Secondary School in Physics. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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