53. Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force exerted on him by the pole has a magnitude of 810 N, and his speed at the bottom of the pole is 3.4 m/s. How far did he slide down the pole?

 

Consider the modified Work-Energy Theorem

 

 

Since he started from rest.

 

So putting these things back into the modified Work-Energy Theorem

 

Now solve for

 

 

 

 

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This page last updated on January 11, 2020