FORCE WAVERLY LABS JEREMY SHUM WHAT IS FORCE
FORCE WAVERLY LABS : JEREMY SHUM
WHAT IS FORCE? • Force is the phenomenon underlying motion/deformation/restraint, otherwise identifying as push/pull exerted by one body on another • This interaction can occur with or without physical contact • Force is treated as a vector, having: • • Application point, i. e. the originating axes Magnitude, i. e. strength of force Direction Sense, i. e. relates the reason why the force is actuating, for example due to a magnetic/electric/gravitational/etc field • Concentrated force is a theoretical single acting point • It is an assumption that the area of force loaded is small compared to the size of the entire body • Transmissibility of force is theoretical assumption that a sliding vector along a line of action has the same effect along its line of action
ADDITION OF FORCES • The assumptions of adding forces in space are: • The lines of action intersect at a fixed point • Resultant force passes through geometric center of body • Adding coplanar forces means the forces lie in the same plane (i. e. coplanar) • Adding forces in space doesn’t infer the forces are in the same plane • As vectors, forces can be added, as discussed earlier: • Using trigonometry • Sometimes, it is necessary to resolve a force in to its components • Using the methods discussed in Cartesian vector addition
EXAMPLE OF RESOLVING A COMPONENT • For example, force of burning light via Phineas Flynn pointing a laser gun at Dr. Heinz Doofenshmirtz, to be resolved in to its [x, y, z] components:
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