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37




                    Force approximation: high













                                                                        

                                                                  L        ave
                                                                  µ       h

                                                                          2  +

                              friction                              1  Y  Lw  flow                        Prof. Ramesh Singh, Notes by Dr.   Singh/ Dr. Colton















                                           <<  1                      ⋅  15


                                                                      1  .
                                       h ave    L                     =






                                           ≡                            roller

                                           ∆
                                                                    F
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