On an essentially frictionless, horizontal ice rink, askater moving at 5.0 m/s encounters a rough patchthat reduces her speed by 40 % due to a friction forcethat is 28 % of her weight.Part AUse the work-energy theorem to find the length of this rough patch.Express your answer using two significant figures.15. ΑΣΦS=SubmitRequest Answer< Return to AssignmentProvide Feedback?m

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Description: On an essentially frictionless, horizontal ice rink, askater moving at 5.0 m/s encounters a rough patchthat reduces her speed by 40 % due to a friction forcethat is 28 % of her weight.Part AUse the work-energy theorem to find the length of this roug

Given Initial velocity, U = 5.0 m/s Final velocity, V = reduced by 40% of U

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On an essentially frictionless, horizontal ice rink, a skater moving at 5.0 m/s encounters a rough patch that reduces her speed by 40 % due to a friction force that is 28% of her weight.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 4P: a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the...

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a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed, (a) Find the work done by the shopper as she moves down a 50.0-m length aisle, (b) What is the net work done on the cart? Why? (c) The shopper goes down the next aisle, pushing horizontally and maintaining the same speed as before. If the work done by frictional forces doesnt change, would the shoppers applied force be larger, smaller, or the same? What about the work done on the cart by the shopper?
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