A 89 kg firefighter slides down the firepole starting from rest. The friction force between his hands the the pole is 641.25 N. If his speed at the bottom is 3 m/s, what is the height of the pole? Hint: youre using both W = F Ax cose and Wnc = AKE + APE.

A 89 kg firefighter slides down the firepole starting from rest. The friction force between his hands the the pole is 641.25 N. If his speed at the bottom is 3 m/s, what is the height of the pole? Hint: youre using both W = F Ax cose and Wnc = AKE + APE.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 75AP: A ski jumper starts from rest 50.0 m above the ground on a frictionless track and flies off the...

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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

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6. A 89 kg firefighter slides down the firepole starting from rest. The friction force between his hands the the pole is 641.25 N. If his speed at the bottom is 3 m/s, what is the height of the pole?
Hint: youre using both W = F Ax cose and Wnc = AKE + APE.
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