Bicycle Wheel Problem 10'2 - PowerPoint PPT Presentation

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Bicycle Wheel Problem 10'2

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You are studying the rear wheel on your bicycle. ... Fe= 155 N. Rr=35.6 cm. Fe=155 N. e= 95.0% Dr=14.0cm. What We Need to Know. IMA=? MA=? Fr=? De ... – PowerPoint PPT presentation

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Title: Bicycle Wheel Problem 10'2


1
Bicycle WheelProblem 10.2
  • Donnie Mezera
  • Physics 2005-2006
  • Wauzeka Steuben School District

2
The Problem
  • What is the IMA of the wheel and gear?
  • What is the MA of the wheel and gear?
  • What force does the scale register?
  • How far was the chain pulled to move the rim that
    amount?
  • You are studying the rear wheel on your bicycle.
    It has a radius of 35. 6 cm and has a gear with
    radius of 4.00 cm. When the chain is pulled with
    a force of 155 N, the wheel rim moves 14.0 cm.
    The efficiency of the part of the bicycle is
    95.0.

3
What We Know
Re4.0 cm
Rr35.6 cm
Rr35.6 cm
Fe155 N
Fe 155 N
Re4.0 cm
e 95.0
Dr14.0cm
4
What We Need to Know
  • IMA?
  • MA?
  • Fr?
  • De?

5
What is the IMA of the wheel and the gear?
  • Formula
  • Rr 35.6 cm

Re4.0 cm
6
What is the MA of the wheel and gear?
  • Formula
  • Now, we have to manipulate the formula to find
    the answer

7
Half Way Done!!!
8
What force does the scale register?
  • Formula

9
How far was this chain pulled to move the rim
that amount?
  • Formula

10
Great Job Everybody, We Are Done
11
  • Mr. O,
  • I had to leave for a trip to Nebraska on a
    hunting trip and this was all I got done. I can
    finish it when I return on Monday. Sorry about
    not letting you know earlier.
  • Donnie
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