A posterior cruciate ligament injury is sometimes called a “…

A posterior cruciate ligament injury is sometimes called a “dashboard injury” because it is commonly torn in car accident when your lower leg contacts the dashboard while seated in a position of knee flexion. For reference, the figure at the below shows the orientation of the anterior cruciate ligament (ACL, red) and the posterior cruciate ligament (PCL, blue) in an extended (left) and flexed (right) position. The applied location and direction of force that would cause this injury is:  

You are given a system model that is composed of a single sp…

You are given a system model that is composed of a single spring and single dashpot that is being used to represent a viscoelastic material. The force in the dashpot is 3 N and the force in the spring is 3 N and the force for the overall system is 3 N. The displacement in the dashpot is 3 mm and the displacement in the spring is 5 mm.  The overall displacement for the system is mm and the spring and dashpot are in .