Problem 5. 5 page The femur is in static equilibrium

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Presentation transcript:

Problem 5. 5 page 154 - The femur is in static equilibrium Problem 5.5 page 154 - The femur is in static equilibrium. We can use Equation 5.1 on page 126 The direction of the force the femur exerts on the patella is indicated roughly on the previous diagram. The sum of the x-components of the forces must be zero. This gives Solving for The sum of the y-components of the forces must be zero also. This gives The magnitude of the force by the femur on the patella is then Assess: This result is reasonable in magnitude, considering the magnitude of the forces exerted by the tendons and their directions.