The brake pads for a bicycle tire are made of rubber. If a frictional force of 50 N is applied to each side of the tires, determine the aver

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The brake pads for a bicycle tire are made of rubber. If a frictional force of 50 N is applied to each side of the tires, determine the average shear strain in the rubber. Each pad has cross-sectional dimensions of 20 mm and 50 mm. Gr

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Ngọc Diệp 2 months 2021-08-25T17:14:57+00:00 1 Answers 162 views 0

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    2021-08-25T17:16:00+00:00

    Answer:

    average shear strain in the rubber is 0.25rad

    Explanation:

    The base has a dimension of 20mm and 50mm.

    frictional force is 50 N

    using the expressed shear stress,

    we will determine τ = F_t/A

    τ  = 50 / 1000

        = 0.05MPa

    shear stress  τ = γ .G

    τ  = shear stress

    γ  = shear strain

    G  = 0.20MPa

    γ = τ / G

      = 0.05 / 0.20

      = 0.25rad

    average shear strain in the rubber is 0.25rad

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