a) A 1.5kg rock is tied to the end of a 1.25m string and is swung in a vertical circle at aconstant speed of 4.5 m·s−1.i) What are the magnitude and direction of the rock’s acceleration when it is at the bottomof the circle?ii) What is the tension in the string when the rock is at the bottom of the circle?iii) What is the tension in the string when the rock is at the top of the circle?iv) If the string breaks when the tension is 135 N, calculate the maximum speed that the rock can be swung without breaking the string.

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Answered: a) A 1.5kg rock is tied to the end of…

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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a) A 1.5kg rock is tied to the end of a 1.25m string and is swung in a vertical circle at a

constant speed of 4.5 m·s−1.

i) What are the magnitude and direction of the rock’s acceleration when it is at the bottom

of the circle?

ii) What is the tension in the string when the rock is at the bottom of the circle?

iii) What is the tension in the string when the rock is at the top of the circle?
iv) If the string breaks when the tension is 135 N, calculate the maximum speed that the rock can be swung without breaking the string.

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