Rock on a String
Rock on a String#
A child ties a 0.75 kg rock to the end of a string and whirls it at a constant speed in a horizontal circle of radius 39 cm.
What, approximately, is the maximum speed at which the rock may be whirled if the string will break when the tension exceeds 300 N?
Problem is licensed under the CC-BY-NC-SA 4.0 license.