A child goes for a bike ride on a bike that weighs 21.5 lb. The child weighs 63 lb and is able to put a maximum force equal to his wieght on his pedal. The dimensions of the tire and sprockets are given belo You may neglect the effect of the moment of inertia of the crank, wheels, and chain and assume that the wheel does not slip on the pavement. Gif animation of child riding bike and bike chain mechanism

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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A child goes for a bike ride on a bike that weighs 21.5 lb. The child weighs 63 lb and is able to put a
maximum force equal to his wieght on his pedal. The dimensions of the tire and sprockets are given below.
You may neglect the effect of the moment of inertia of the crank, wheels, and chain and assume that the
wheel does not slip on the pavement.
Gif animation of child riding bike and bike chain mechanism
D₁
Dimensions:
Drs
Diameter of tire, D₁ = 20in
Diameter of rear sprocket, Drs = 2.75in
Diameter of front sprocket, Dfs = 6.5in
Radius of crank, Re = 5.75in
a. How much force in lb is felt by the chain?
lb
R. F
Dis
FOD
2020 Joe Graber
b. What is the magnitude of the frictional force between the rear wheel and the ground?
lb
c. How fast will the child and bike accelerate?
ft
Transcribed Image Text:A child goes for a bike ride on a bike that weighs 21.5 lb. The child weighs 63 lb and is able to put a maximum force equal to his wieght on his pedal. The dimensions of the tire and sprockets are given below. You may neglect the effect of the moment of inertia of the crank, wheels, and chain and assume that the wheel does not slip on the pavement. Gif animation of child riding bike and bike chain mechanism D₁ Dimensions: Drs Diameter of tire, D₁ = 20in Diameter of rear sprocket, Drs = 2.75in Diameter of front sprocket, Dfs = 6.5in Radius of crank, Re = 5.75in a. How much force in lb is felt by the chain? lb R. F Dis FOD 2020 Joe Graber b. What is the magnitude of the frictional force between the rear wheel and the ground? lb c. How fast will the child and bike accelerate? ft
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