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Conservation of energy: Breaking of the pendulum string

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A 1.91 kg ball is attached to the bottom end of a length of fish line with a breaking strength of 8 lb (35.6 N). The top end of the fishing line is held stationary. The ball is released from rest with the line taut and horizontal ( = 90.0°). At what angle (measured from the vertical) will the fish line break?

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Solution Summary

A pendulum is released from its horizontal position, the angle at which the string breaks is calculated.

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