A 2.12 kg block hangs from a vertical rubber cord. The block is supported so that the cord is not stretched. The unstretched length of the cord is 0.470 m, and its mass is 4.84 g. The "spring constant" for the cord is 111 N/m. The block is released; we'll consider what happens at the moment the block is at its lowest point. You can treat the cord as a massless spring except in part c. (a) Determine the tension in the cord when the block is at the lowest point (in newtons). (b) What is the length of the cord in this "stretched" position (in meters)? (c) Calculate the speed of a transverse wave (in m/s) in the cord if the block is held at this lowest position. Answer
A 2.12 kg block hangs from a vertical rubber cord. The block is supported so that the cord is not stretched. The unstretched length of the cord is 0.470 m, and its mass is 4.84 g. The "spring constant" for the cord is 111 N/m. The block is released; we'll consider what happens at the moment the block is at its lowest point. You can treat the cord as a massless spring except in part c. (a) Determine the tension in the cord when the block is at the lowest point (in newtons). (b) What is the length of the cord in this "stretched" position (in meters)? (c) Calculate the speed of a transverse wave (in m/s) in the cord if the block is held at this lowest position. Answer
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter8: Conservation Of Energy
Section: Chapter Questions
Problem 8.69AP: A block of mass M rests on a table. It is fastened to the lower end of a light, vertical spring. The...
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A 2.12 kg block hangs from a vertical rubber cord. The block is supported so that the cord is not stretched. The unstretched length of the cord is 0.470 m, and its mass is 4.84 g. The "spring constant" for the cord is 111 N/m. The block is released; we'll consider what happens at the moment the block is at its lowest point. You can treat the cord as a massless spring except in part c.
(a) Determine the tension in the cord when the block is at the lowest point (in newtons).
(b) What is the length of the cord in this "stretched" position (in meters)?
(c) Calculate the speed of a transverse wave (in m/s) in the cord if the block is held at this lowest position.
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