10. A weight of 50.0 N is attached to the free end of a light string wrapped around a reel with a radius of a quarter meter and mass of 3.0 kg. The reel is a solid cylindrical disc free to rotate in a vertical plane about the horizontal axis passing through its center. The weight is released 6.0 m above the floor. a) Find the tension in the string, b) the acceleration of the mass, and c) the speed with which the weight hits the floor. d) Find the speed calculated in part a) using conservation of energy.

10. A weight of 50.0 N is attached to the free end of a light string wrapped around a reel with a radius of a quarter meter and mass of 3.0 kg. The reel is a solid cylindrical disc free to rotate in a vertical plane about the horizontal axis passing through its center. The weight is released 6.0 m above the floor. a) Find the tension in the string, b) the acceleration of the mass, and c) the speed with which the weight hits the floor. d) Find the speed calculated in part a) using conservation of energy.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.

Question

10. A weight of 50.0 N is attached to the free end of a light string wrapped around a
reel with a radius of a quarter meter and mass of 3.0 kg. The reel is a solid
cylindrical disc free to rotate in a vertical plane about the horizontal axis passing
through its center. The weight is released 6.0 m above the floor. a) Find the
tension in the string, b) the acceleration of the mass, and c) the speed with which
the weight hits the floor. d) Find the speed calculated in part a) using
conservation of energy.

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