The density of steel is about 7900 kilograms per cubic meter, and its breaking stress, defined as the maximum stress the material can bear without...

The density of steel is about 7900 kilograms per cubic meter, and its breaking stress, defined as the maximum stress thematerial can bear without deteriorating, is about 2×109 pascals. What is the maximum length of a steel cable that can belowered into a mine?Assume that the magnitude of the acceleration due to gravity remains constant at 9.8 meters per second per second.