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A person is doing leg lifts with 3.00-kg ankle weights. The lower leg itself has a mass of 5.00 kg. When the leg is held still at an angle of 30.0° with respect to the horizontal, the patellar tendon pulls on the tibia with a force of 368 N at an angle of 20.0⁰ with respect to the lower leg. Assume the force exerted on the tibia by the femur is the only other significant force acting on the lower leg. At what angle below the horizontal does the force exerted on the tibia by the femur act? Enter the angle in degrees where positive indicates right of the horizontal and negative indicates left of the horizontal.

A person is doing leg lifts with 3.00-kg ankle weights. The lower leg itself has a mass of 5.00 kg. When the leg is held still at an angle of 30.0° with respect to the horizontal, the patellar tendon pulls on the tibia with a force of 368 N at an angle of 20.0⁰ with respect to the lower leg. Assume the force exerted on the tibia by the femur is the only other significant force acting on the lower leg. At what angle below the horizontal does the force exerted on the tibia by the femur act? Enter the angle in degrees where positive indicates right of the horizontal and negative indicates left of the horizontal.

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A person is doing leg lifts with 3.00-kg ankle weights. The lower leg itself has a mass of 5.00 kg. When the leg is held still at an angle of 30.0° with respect to the horizontal, the patellar tendon pulls on the tibia with a force of 368 N at an angle of 20.0° with respect to the lower leg. Assume the force exerted on the tibia by the femur is the only other significant force acting on the lower leg. At what angle below the horizontal does the force exerted on the tibia by the femur act? Enter the angle in degrees where positive indicates right of the horizontal and negative indicates left of the horizontal.
Transcribed Image Text:A person is doing leg lifts with 3.00-kg ankle weights. The lower leg itself has a mass of 5.00 kg. When the leg is held still at an angle of 30.0° with respect to the horizontal, the patellar tendon pulls on the tibia with a force of 368 N at an angle of 20.0° with respect to the lower leg. Assume the force exerted on the tibia by the femur is the only other significant force acting on the lower leg. At what angle below the horizontal does the force exerted on the tibia by the femur act? Enter the angle in degrees where positive indicates right of the horizontal and negative indicates left of the horizontal.
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