BME 101 Lecture Notes - Lecture 9: Free Body Diagram, Contact Force, Hypotenuse

• School: University of Rochester
• Department: Biomedical Engineering
• Course: BME 101
• Professor: Edward Brown

Document Summary

For vectors, just split them into x and y components, sum them respectively, then get the hypotenuse of the resultant triangle i hat is x comp, j hat is y comp. Use inverse tan to find the angle from the x comp and y comp. Colinear all forces have the same line of action. Coplanar lines of action of the forces in question are on the same plane (may give rotations and complicated movements) Concurrent the lines of action all pass through the same point. A free body diagram shows all the forces acting on a body. A simple drawing of the body to be analyzed. Includes force vectors at all locations of support connections and contacts with other bodies. Gravitational (fg = m * g jhat) Contact force (i. e. normal force, opposite to and equal to weight) Cable force (is a subsection of contact force) (force produced by cables is always tensile force, same tension everywhere)