SHORT RESPONSE When you shift gears on a bicycle, a mechanism called a derailleur moves
Chapter 8, Problem 8.3.7(choose chapter or problem)
SHORT RESPONSE When you shift gears on a bicycle, a mechanism called a derailleur moves the chain to a new gear. For the derailleur shown below, JK 5 5.5 cm, KL 5 2 cm, ML 5 5.5 cm, and MJ 5 2 cm. Explain why }JK and}ML are always parallel as the derailleur moves.
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