KE₁ O yes V₁ A 55.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m-high rise as shown in the figure. The coefficient of friction between her skis and the snow is 0.090. Hint: find the distance traveled up the incline assuming a straight-line path as shown in the figure. Think & Prepare (a) Is mechanical energy conserved in this problem? 1. Make note of what's given and what's unknown. Relate known quantities to symbols. 2. Draw a labeled sketch if possible. O zero 3. Identify the physics principle and approach. Write down relevant equations symbolically. Simplify if possible. 4. Insert numerical quantities to solve for unknowns. 5. Does the answer make sense? O no (b) The change in mechanical energy equals. 35° O work done by friction. V₁ = ? O positive. O negative. 2.5 m O increase in PE. Use (b) to set-up a mathematical equation between change in mechanical energy and work done by friction (c) The work done by friction is

KE₁ O yes V₁ A 55.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m-high rise as shown in the figure. The coefficient of friction between her skis and the snow is 0.090. Hint: find the distance traveled up the incline assuming a straight-line path as shown in the figure. Think & Prepare (a) Is mechanical energy conserved in this problem? 1. Make note of what's given and what's unknown. Relate known quantities to symbols. 2. Draw a labeled sketch if possible. O zero 3. Identify the physics principle and approach. Write down relevant equations symbolically. Simplify if possible. 4. Insert numerical quantities to solve for unknowns. 5. Does the answer make sense? O no (b) The change in mechanical energy equals. 35° O work done by friction. V₁ = ? O positive. O negative. 2.5 m O increase in PE. Use (b) to set-up a mathematical equation between change in mechanical energy and work done by friction (c) The work done by friction is

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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