A ball is attached to a string and swung in a vertical circle. The ball is swung at a faster and faster rate, at what point in the path is the string most likely to break? Explain why.

A child whirls a stone on a string in a horizontal circle of radius 1.5 m and at a height of 2.0 m above level ground.  The string breaks and the stone flies off horizontally and hits the ground 13.3 m away horizontally.  Determine the magnitude of the centripetal acceleration of the stone just before the string broke.  (Use g = 10 N/kg).

Life scientists use ultracentrifuges to separate biological components or to remove molecules from suspension. Samples in a symmetric array of containers are spun rapidly about a central axis. The centrifugal acceleration they experience in their moving reference frame acts as "artificial gravity" to effect a rapid separation. If the sample containers are 11.9 cm from the rotation axis, what rotation frequency is required to produce an acceleration of 1.85-105 g? Submit Answer Tries 0/99

A stone is tied to a string and whirled at constant speed in a horizontal circle. The speed is then doubled without changing the length of the string. What would be the magnitude of the acceleration of the stone compared to the initial scenario? Show complete solution.