A mass of 0.50 kg hangs from the end of a string that rotates in vertical circles of radius 2.0 m. When the mass is at the top of the path, its speed is 8.0 m/s. What is the tension of the rope in this position?

A mass of 0.50 kg hangs from the end of a string that rotates in vertical circles of radius 2.0 m. When the mass is at the top of the path, its speed is 8.0 m/s. What is the tension of the rope in this position?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 9WUE: A man whirls a 0.20-kg piece of lead attached to the end of a string of length 0.500 m in a circular...

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

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10. A mass of 0.50 kg hangs from the end of a string that rotates in vertical circles of radius 2.0 m. When the mass is at the top of the path, its speed is 8.0 m/s. What is the tension of the rope in this position?

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