51. A cylinder with moment of inertia I (about its center) that is initially not rotating, falls onto and sticks to a spinning cylinder with moment of inertia 21 (about its center) as shown. Calculate the fraction of rotational kinetic energy lost during this process (fraction lost = (Ki Kf) / Ki). a) 0 b) 1/2 c) 2/3 d) 1/3 e) 1/4 I 21 -not spinning
51. A cylinder with moment of inertia I (about its center) that is initially not rotating, falls onto and sticks to a spinning cylinder with moment of inertia 21 (about its center) as shown. Calculate the fraction of rotational kinetic energy lost during this process (fraction lost = (Ki Kf) / Ki). a) 0 b) 1/2 c) 2/3 d) 1/3 e) 1/4 I 21 -not spinning
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Chapter1: Units, Trigonometry. And Vectors
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51. Please help answer this question thank you so much!:))
![51. A cylinder with moment of inertia I (about its center) that is initially not rotating, falls
onto and sticks to a spinning cylinder with moment of inertia 21 (about its center) as
shown. Calculate the fraction of rotational kinetic energy lost during this process (fraction
lost = (Ki Kf) / Ki).
a) 0
b) 1/2
c) 2/3
d) 1/3
e) 1/4
I
21
-not
spinning](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F17525826-644e-4b54-80a2-4cc5c7d853ae%2Ffe20eb74-3940-46bc-8cad-8eb436b641bc%2Fc0w84e_processed.jpeg&w=3840&q=75)
Transcribed Image Text:51. A cylinder with moment of inertia I (about its center) that is initially not rotating, falls
onto and sticks to a spinning cylinder with moment of inertia 21 (about its center) as
shown. Calculate the fraction of rotational kinetic energy lost during this process (fraction
lost = (Ki Kf) / Ki).
a) 0
b) 1/2
c) 2/3
d) 1/3
e) 1/4
I
21
-not
spinning
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Step 1: Determine the given data in the step :
VIEWStep 2: Determine the expression for the final angular velocity in the step :
VIEWStep 3: Determine the initial and final rotational kinetic energies in the step :
VIEWStep 4: Determine the fractional loss in the rotational kinetic energy in the step :
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