A 0.4 kg mass, attached to the end of a 0.75 m string, is whirled around in a circular vertical path. The maximum tension that the string can withstand is 20 N. A. What minimum speed would the mass be moving if the string broke at the top of the circle? B. What minimum speed would cause the string to break at the bottom of the circle? C. Now let the mass be half way between the top and bottom of the vertical circle (at 9 o'clock on a clock face). If the speed is just at the breaking strength of the string, what is the magnitude and direction of the mass' acceleration?
A 0.4 kg mass, attached to the end of a 0.75 m string, is whirled around in a circular vertical path. The maximum tension that the string can withstand is 20 N. A. What minimum speed would the mass be moving if the string broke at the top of the circle? B. What minimum speed would cause the string to break at the bottom of the circle? C. Now let the mass be half way between the top and bottom of the vertical circle (at 9 o'clock on a clock face). If the speed is just at the breaking strength of the string, what is the magnitude and direction of the mass' acceleration?
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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Directions: Use g = 9.80 m/s2 and assume all numbers are accurate to 3 significant
figures unless otherwise indicated.
Transcribed Image Text:A 0.4 kg mass, attached to the end of a 0.75 m string, is whirled around in a circular vertical path. The maximum tension that the string can withstand is 20 N.
A. What minimum speed would the mass be moving if the string broke at the top of the circle?
B. What minimum speed would cause the string to break at the bottom of the circle?
C. Now let the mass be halfway between the top and bottom of the vertical circle (at 9 o’clock on a clock face). If the speed is just at the breaking strength of the string, what is the magnitude and direction of the mass’ acceleration?
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