KP351 Lecture 10: KP351_10
Document Summary
One segment can exert a force on another segment, causing a movement in that segment. Inertial force: that is not due to a muscle action. I = mp2 (i = inertia, m = mass, p = radius of gyration) When a force is applied to a material, the material under goes a change in its length. Biological tissue such as bone, tendon, and muscle can become compressed or stretched when external forces are applied to them. This relationship is represented in stress-strain curves. F elastic = k(change)s (k = sti ness, change in s = change in length) Bone responds sti y because of high rate of loading (get notes for muscles, tendon, bone) E ects of a force applied over a period of time. Force is needed to change momentum of object. F x dt = mv nal - mvinitial. Initial = 70 ns / -56. 2kg = -1. 25m/s.