1) A person of weight 600N has her feet horizontal but her heels are slightly off the ground so that her weight is supported by the reaction force from the floor on each foot. Two other forces are assumed to be acting on the foot : a reaction force from the tibia on the foot and the force due to the Achilles tendon. The persons weight is assumed to be evenly distributed on the two feet. Find the magnitudes of the forces acting on the foot.
Distance between reaction force and achilles = 25cm
Distance between reaction force and lower leg bones =18cm
2)A 700N, 1.7m tall person rests horizontally on two scales. Assuming the center of mass of the person is at a distance 96cm from the feet and that the distance between the scales is 1.6m, find the reading on each scales.
These are practice for an exam i have tomorrow, and i cant do these two questions at all :/
Torque = force x sin (theta) x distance
The Attempt at a Solution
I have no idea to begin with 1) and for 2) find the torques?
If someone just does the answer ill be able to work it out! :)