1. The problem statement, all variables and given/known data The Achilles tendon is attached to the rear of the foot as shown in (Figure 1) . A person elevates himself just barely off the floor on the "ball of one foot." Assume the person has a mass of 80kg and D is twice as long as d. a:Find the tension FT in the Achilles tendon (pulling upward). b:Find the (downward) force FB exerted by the lower leg bone on the foot. http://session.masteringphysics.com/problemAsset/1706786/4/GIANCOLI.ch09.p34.jpg 2. Relevant equations FB + FT -m*g = 0 [Force Equilibrium] FB*D + FT*(D+d) = 0 [Moment Equilibrium] i think 3. The attempt at a solution not sure what to do because there doesn't seem to be enough info.