Solved:
Answered by AI, Verified by Human Experts
Two uniform solid cylinders, each rotating about its central(longitudinal) axis, have the same mass of 1.25 kg, and rotate withthe same angular speed of 235 rad/s,but they differ in radius.
Two uniform solid cylinders, each rotating about its central(longitudinal) axis, have the same mass of 1.25 kg, and rotate withthe same angular speed of 235 rad/s,but they differ in radius.(a) What is the rotational kinetic energy ofthe smaller cylinder, of radius 0.32m?
J
(b) What is the rotational kinetic energy of the larger cylinder,of radius 0.7 m?
Answer:Explanation:mass, m = 1.25 kgangular speed, ω = 235 rad/sThe moment of inertia of the cylinder is given byI = 1/2 mr²(a) the kinetic energy of rotation is given byK = 1/2 Iω²K = 1/4 mr²ω²where, m is the mass of cylinder and r be the radius of cylinderK = 0.25 x 1.25 x 0.32 x 0.32 x 235 x 235K = 1767.2 J(b) the kinetic energy of rotation is given byK = 1/2 Iω²K = 1/4 mr²ω²where, m is the mass of cylinder and r be the radius of cylinderK = 0.25 x 1.25 x 0.7 x 0.7 x 235 x 235K = 8456.33 J...
Unlock full access for 72 hours, watch your grades skyrocket.
For just $0.99 cents, get access to the powerful quizwhiz chrome extension that automatically solves your homework using AI. Subscription renews at $5.99/week.