The patellar tendon attaches to the tibia at the tibial tuberosity at a perpendicular distance of 4.91 cm from the center of the knee joint. During an isometric contraction, the lower leg is held at an angle of 35° of knee extension with a 400 N weight strapped to the ankle. The weight is 52 cm from the knee joint center. What is the force produced by the quadriceps to hold this position? Ignore the weight of the leg.

The patellar tendon attaches to the tibia at the tibial tuberosity at a perpendicular distance of 4.91 cm from the center of the knee joint. During an isometric contraction, the lower leg is held at an angle of 35° of knee extension with a 400 N weight strapped to the ankle. The weight is 52 cm from the knee joint center. What is the force produced by the quadriceps to hold this position? Ignore the weight of the leg.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 31PQ: A wooden door 2.1 m high and 0.90 m wide is hung by two hinges 1.8 m apart. The lower hinge is 15 cm...

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