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Problem 1 Two friends are planning to go on a 480 mile-long bike ride over the...

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Physics

Problem 1 Two friends are planning to go on a 480 mile-long bikeride over the summer. One is planning to ride a mountain bike with26-in. tires, the other has a touring bike with 27-in. tires. a)How many more revolutions will the mountain bike tires make in thatdistance than the touring bike? b) Typical gearing for mostebicycles ranges from 30 to 50 teeth on the chain wheel (frontgears) and 12 to 30 teeth on the rear cog. How many morerevolutions on the pedals will the mountain biker make during thetrip. Assume he is pedaling 85% of the time and has a 42-toothchain wheel and a 21-tooth rear cog. c) If both cyclists have170-mm cranks on their bikes, what will be the mechanical advantage(consider only the movement of the feet with a constant force forwalking and riding), in percent, that each rider will have achievedover walking the same distance.

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