Suppose you swing a ball of mass m in a vertical circle on a string of length L. As you probably know from experience, there is a minimum angular welocity wmin you must maintain if you want the ball to complete the full circle without the string going slack at the top. ▼ Part A Find an expression for wmin in terms of g and L. Express your answer in terms of the variable L and the free-fall acceleration g. Wmin= Submit √E Part B Previous Answers Correct Evaluate wmin in rpm for a 65 g ball tied to a 1.8-m-long string. Express your answer in revolutions per minute.
Suppose you swing a ball of mass m in a vertical circle on a string of length L. As you probably know from experience, there is a minimum angular welocity wmin you must maintain if you want the ball to complete the full circle without the string going slack at the top. ▼ Part A Find an expression for wmin in terms of g and L. Express your answer in terms of the variable L and the free-fall acceleration g. Wmin= Submit √E Part B Previous Answers Correct Evaluate wmin in rpm for a 65 g ball tied to a 1.8-m-long string. Express your answer in revolutions per minute.
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter6: Uniform Circular Motion And Gravitation
Section: Chapter Questions
Problem 16PE: Olympic ice skaters are able to spin at about 5 rev/s. (a) What is their angular velocity in radians...
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