Find the frictional force on the bone

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Reference no: EM13246542

As a person walks, the femur (upper leg bone) slides in a socket in the hip. This socket contains cartilage and synovial fluid, giving it a low coefficient of friction. Consider a 68kg person walking on a horizontal sidewalk. Typically, both legs together comprise 34.5% of a person's weight.

Part A Find the frictional force on the bone in the hip joint. Assume ? =0.003.

Part B If this person were walking on the Moon, where g = 1.67 m/s2, what would be the frictional force at the hip joint?

Part C With age or with osteoarthritis, the synovial fluid can dry up, resulting in a much higher coefficient of friction. If this coefficient increases 100-fold (which can happen), what would be the frictional force (on Earth)?

Reference no: EM13246542

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