**28. Multiple-Concept Example 5 reviews many of the concepts that playroles in this problem. An extreme skier, starting from rest, coasts downa mountain slope that makes an angle of 25.0° with the horizontal. Thecoefficient of kinetic friction between her skis and the snow is 0.200. Shecoasts down a distance of 10.4 m before coming to the edge of a cliff.Without slowing down, she skis off the cliff and lands downhill at a pointwhose vertical distance is 3.50 m below the edge. How fast is she goingjust before she lands?

Answered: Image /qna-images/answer/30e3e0f1-a215-4089-b4b1-fbbadb7fe8ac.jpg

Answered: **28. Multiple-Concept Example 5…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 8STP

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A puck of mass 0.170 kg slides across ice in the positive x-direction with a kinetic friction coefficient between the ice and puck of 0.150. If the puck is moving at an initial speed of 12.0 m/s, (a) what is the force of kinetic friction? (b) What is the acceleration of the puck? (c) How long does it take for the puck to come to rest? (d) What distance does the puck travel during that time? (e) What total work does friction do on the puck? (f) What average power does friction generate in the puck during that time? (g) What instantaneous power does friction generate in the puck when the velocity is 6.00 m/s? (See Sections 2.5, 4.6, 5.1, and 5.6.)
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