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Learning Goal: A cyclist competes in a one-lap race around a flat, circular course of radius 140 m Starting from rest and speeding up at a constant rate throughout the race, the cyclist covers the entire course in 60 s. The mass of the bicycle (including the rider) is 76 kg. What is the magnitude of the net force Fnet acting on the bicycle as it crosses the finish line? Solve Part D Find Ff,net, the magnitude of the net force acting on the cyclist at the finish line. Express your answer in newtons to two significant figures. ► View Available Hint(s) Ff.net = Submit 15. ΑΣΦ 3 ? net N a R Top view Start/Finish Known R = 140 m At = 60 s m = 76 kg Find Fract

Learning Goal: A cyclist competes in a one-lap race around a flat, circular course of radius 140 m Starting from rest and speeding up at a constant rate throughout the race, the cyclist covers the entire course in 60 s. The mass of the bicycle (including the rider) is 76 kg. What is the magnitude of the net force Fnet acting on the bicycle as it crosses the finish line? Solve Part D Find Ff,net, the magnitude of the net force acting on the cyclist at the finish line. Express your answer in newtons to two significant figures. ► View Available Hint(s) Ff.net = Submit 15. ΑΣΦ 3 ? net N a R Top view Start/Finish Known R = 140 m At = 60 s m = 76 kg Find Fract

College Physics
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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Learning Goal: A cyclist competes in a one-lap race around a flat, circular course of radius 140 m. Starting from rest and speeding up at a constant rate throughout the race, the cyclist covers the entire course in 60 s. The mass of the bicycle (including the rider) is 76 kg. What is the magnitude of the net force Fnet acting on the bicycle as it crosses the finish line? Solve Part D Ff,net = Find Ff,net, the magnitude of the net force acting on the cyclist at the finish line. Express your answer in newtons to two significant figures. ► View Available Hint(s) Submit ΠΫΠΙ ΑΣΦ = ? N F R d net * Top view Start/Finish Known R = 140 m At = 60 s m = 76 kg Find Ff, net
Transcribed Image Text:Learning Goal: A cyclist competes in a one-lap race around a flat, circular course of radius 140 m. Starting from rest and speeding up at a constant rate throughout the race, the cyclist covers the entire course in 60 s. The mass of the bicycle (including the rider) is 76 kg. What is the magnitude of the net force Fnet acting on the bicycle as it crosses the finish line? Solve Part D Ff,net = Find Ff,net, the magnitude of the net force acting on the cyclist at the finish line. Express your answer in newtons to two significant figures. ► View Available Hint(s) Submit ΠΫΠΙ ΑΣΦ = ? N F R d net * Top view Start/Finish Known R = 140 m At = 60 s m = 76 kg Find Ff, net
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Use the answer in part D to complete part E.

Part D Find Ff, net, the magnitude of the net force acting on the cyclist at the finish line. Express your answer in newtons to two significant figures. ► View Available Hint(s) Ff,net = 470 N Submit Review Part E Hs = Previous Answers Correct Correct answer is shown. Your answer 470.4 N was either rounded differently or used a different number of significant figures than required for this part. Important: If you use this answer in later parts, use the full unrounded value in your calculations. To review whether your calculations make sense, let's simplify the problem even further and assume air resistance is negligible. In this case, the net force acting on the bicyclist is equivalent to just the force of static friction, and your answer to Part D is the magnitude fs. Based on this value, what is the minimum coefficient of static frictions between the race track and the bicycle? Express your answer numerically to two significant figures. ► View Available Hint(s) Submit ΓΠ ΑΣΦ ?
Transcribed Image Text:Part D Find Ff, net, the magnitude of the net force acting on the cyclist at the finish line. Express your answer in newtons to two significant figures. ► View Available Hint(s) Ff,net = 470 N Submit Review Part E Hs = Previous Answers Correct Correct answer is shown. Your answer 470.4 N was either rounded differently or used a different number of significant figures than required for this part. Important: If you use this answer in later parts, use the full unrounded value in your calculations. To review whether your calculations make sense, let's simplify the problem even further and assume air resistance is negligible. In this case, the net force acting on the bicyclist is equivalent to just the force of static friction, and your answer to Part D is the magnitude fs. Based on this value, what is the minimum coefficient of static frictions between the race track and the bicycle? Express your answer numerically to two significant figures. ► View Available Hint(s) Submit ΓΠ ΑΣΦ ?
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