A person who weighs 779 N supports himself on the ball of one foot. The normal force N = 779 N pushes up on the ball of the foot on one side of the ankle joint, while the Achilles tendon pulls up on the foot on the other side of the joint. The center of gravity of the person is located right above the tibia. What is the tension in the Achilles tendon? If the force acting is upward, enter a positive value andif the force acting is downward, enter a negative value. __N

What is the magnitude of the downward force exerted on the ankle joint by the tibia?

__N