A small block with a mass of 0.0900 kg is attached to a cord passing through a hole In a frictionless, horizontal surface. The block Is originally revolving at a distance of 0.40 m from the hole with a speed of 0.70m/s. The cord is then pulled from below, shortening the radlus of the circle in which the block revolves to 0.10 m. At this new distance, the speed of the block is observed to be 2.80 m/s. What is the tension In the cord In the final situation when the block has speed v-2.80m/s? Option1 Option2 Option3 Option4 Option5 7.1 N 0.11 N 6.5 N 0.12 N 2.11 N
A small block with a mass of 0.0900 kg is attached to a cord passing through a hole In a frictionless, horizontal surface. The block Is originally revolving at a distance of 0.40 m from the hole with a speed of 0.70m/s. The cord is then pulled from below, shortening the radlus of the circle in which the block revolves to 0.10 m. At this new distance, the speed of the block is observed to be 2.80 m/s. What is the tension In the cord In the final situation when the block has speed v-2.80m/s? Option1 Option2 Option3 Option4 Option5 7.1 N 0.11 N 6.5 N 0.12 N 2.11 N
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...
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