39. A ball of mass 4.0 kg is attached to the end of a 1.2 m long string and whirled around in a circle that describes a vertical plane. (APP) (a) What is the minimum speed that the ball can be moving at and still maintain a circular path? Provide a free-body diagram(3) (b) At this speed, what is the maximum tension in the string? Provide another free-body diagram.(2) (c) If the ball is rotated in a horizontal circle at the same speed with the end of the string held above the head, what angle does the string make with the horizontall?(2) 40. An Earth satellite has an orbital period of 3.2 h. What is its orbital radius? (APP)(2) (ME=5.98 × 1024 kg) 8 of 13
39. A ball of mass 4.0 kg is attached to the end of a 1.2 m long string and whirled around in a circle that describes a vertical plane. (APP) (a) What is the minimum speed that the ball can be moving at and still maintain a circular path? Provide a free-body diagram(3) (b) At this speed, what is the maximum tension in the string? Provide another free-body diagram.(2) (c) If the ball is rotated in a horizontal circle at the same speed with the end of the string held above the head, what angle does the string make with the horizontall?(2) 40. An Earth satellite has an orbital period of 3.2 h. What is its orbital radius? (APP)(2) (ME=5.98 × 1024 kg) 8 of 13
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:39. A ball of mass 4.0 kg is attached to the end of a 1.2 m long string and whirled around in a circle that
describes a vertical plane. (APP)
(a) What is the minimum speed that the ball can be moving at and still maintain a circular path? Provide a
free-body diagram(3)
(b) At this speed, what is the maximum tension in the string? Provide another free-body diagram.(2)
(c) If the ball is rotated in a horizontal circle at the same speed with the end of the string held above the head,
what angle does the string make with the horizontall?(2)
40. An Earth satellite has an orbital period of 3.2 h. What is its orbital radius? (APP)(2)
(ME=5.98 × 1024 kg)
8 of 13
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