lb) [Same equipment as in la)]. A string is wound around the shaft and a weight holder with some weights is hanging from the string. The mass of the weight holder and weights is 400 g. The weight holder is let go and falls for a distance of 0.8 m, what is the angular speed of the “dumbbell"? Hint: neglect the translational kinetic energy of the falling mass.
lb) [Same equipment as in la)]. A string is wound around the shaft and a weight holder with some weights is hanging from the string. The mass of the weight holder and weights is 400 g. The weight holder is let go and falls for a distance of 0.8 m, what is the angular speed of the “dumbbell"? Hint: neglect the translational kinetic energy of the falling mass.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 59P: A cylinder of mass 10.0 kg rolls without slipping on a horizontal surface. At a certain instant, its...
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The question I need to be answered is 1B (the second picture). I included the first question because some of the information from it is the same. Thanks!
Transcribed Image Text:la) A “dumbbell" used in the energy conservation in rotational motion lab, consists of a cylindrical rigid rod
with two 0.2 kg masses fixed at the ends. The mass of the rod is negligible when compared to the two masses.
The diameter of the rod is 8 mm and its length is 20 cm. The rod is rotating about its center (with the axis of
rotation perpendicular to the length of the rod as in today's experiment). What is the moment of inertia of this
system?
![1b) [Same equipment as in la)]. A string is wound around the shaft and a weight holder with some weights is
hanging from the string. The mass of the weight holder and weights is 400 g. The weight holder is let go and
falls for a distance of 0.8 m, what is the angular speed of the “dumbbell'"?
Hint: neglect the translational kinetic energy of the falling mass.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9a3c01e2-850a-490c-9804-34c1c696d004%2F65890c64-1926-4252-b26e-e9a349d3293e%2Fooqbaso_processed.png&w=3840&q=75)
Transcribed Image Text:1b) [Same equipment as in la)]. A string is wound around the shaft and a weight holder with some weights is
hanging from the string. The mass of the weight holder and weights is 400 g. The weight holder is let go and
falls for a distance of 0.8 m, what is the angular speed of the “dumbbell'"?
Hint: neglect the translational kinetic energy of the falling mass.
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