Chapter 6 Equilibrium Flashcards
what is a vector
A vector is a physical quantity that has a direction as well as a magnitude.
what is a scalar
A scalar is any physical quantity that is not directional.
Displacement
distance given in a given direction.
velocity
is the sped in a given direction.
Force and acceleration
are both vector quantities and therefore can each be represented by an arrow in the appropriate direction and of length in proportion to the magnitude of the quantity.
moment = what ?
moment = force x perpendicular distance from the line of the action of the force to the pivot.
Vector
Velocity acceleration force displacement
Scalar
Speed time temperature distance
Distance
Scalar
Speed
Scalar
Mass
Scalar
Energy
Scalar
Density
Scalar
Power
Scaler
Time
Scaler
Temperature
Scaler
Work
Scalar
Displacement
Vector
Velocity
Vector
Weight
Vector
Acceleration
Vector
Force
Vector
Impulse
Vector
Pressure
Vector
Momentum
Vect
Gravity
Vector
Drag
Vector
Equilibrium
when all external forces (including moments) acting on it are balanced. This means that the resultant of all the external forces and moments acting on this object is zero.
Vertical
Sin
Magnitude
Pythagoras
Direction
Tan
Horizontal
Cos
Support force
W1 x d1 = w2 x d2
