The soft-ride suspension system of the mountain bike is pinned at C and supported by the shock absorber BD. If it is designed to support a load P = 1500 N, determine the required minimum diameter of pins B and C. Use a factor of safety of 2 against failure. The pins are made of material having a failure shear stress of τ_fail = 150 MPa, and each pin is subjected to double shear.

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A -300 mm- 100 mm 30 mm 60% BC