Engineering- 2.1

strong rope made of metal used in structures

geometrical center of an area

body subjected to a push

all forces applied at the same point/ action lines having the same intersection

exposing a surface or shape by cutting through a 90 degree angle from the axis

direction of a vector is defined by the angle between a reference point and the arrow's line of direction

prevents translation or rotation in a beam

broad ridge, connected at a right angle, that's used to strengthen a structure

shows all external forces acting on a body

plate or bracket used to strengthen an angle

connection of points of members of a truss

absolute value of a number

straight pieces of a truss

analysis of trusses that contructs free body diagrams of each joint & determins forces acting on that joint by considering the equilibrium of the joint pin

turning effect of a force

mathmatical property of a cross-section that is concerned with surface area & how that area is distributed about a centroidial axis

things at rest stay at rest, things in motion stay in motion- unless acted upon by another force

change of motion of a body is proportional to the net force applied

for every action there is an equal and opposite reaction

prevents translation in any direction

lies on a single plane. often used to support roofs & bridges

result of a system of force is the vector sum of all forces

only prevents a beam from translating in 1 direction

physical quiantity that has magnitude only

direction of the vector realtive to its path & indicated by the location of the arrow

composed of triangles

no motion or continuous motion

a body that is over-constrained such that there are no more unkown supports than there are equations of static equilibrium

make up of interdependant parts in a definite pattern & organization

body subjected to a pull

quantity with both magnitude & direction