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?
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?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 25P: As their booster rockets separate, Space Shuttle astronauts typically feel accelerations up to 3g,...
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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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