Problem 7 Trekking handlebars or "butterfly bars" are popular with long-distance cyclists because they offer lots of different places to put your hands. The rider applies a vertical load of 90 N at the location shown. Wh 120 150 30 Image credit: cycletraveloverload.com. All dimensions in mm. ↑ 100 c↓ t 50 a) Find which point experiences the largest bending moment and calculate its magnitude. b) Find which point experiences the largest torque and calculate its magnitude. c) Now assume a shopping bag weighing 50 N is hung from the bars at point c. The bar has a uniform hollow circular cross-section with an outer diameter of 22 mm and an inner diameter of 19 mm. Calculate the maximum normal stress and maximum shear stress at point a. Give your answers in units of MPa.

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Applied Fluid Mechanics

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