How is the vertical component of a force calculated?
Fv = F x Sin x Angle
How is the horizontal component of a force calculated?
Fh = F x Cos x Angle
What is the resultant of a system of forces?
The resultant of a system of forces is a single force acting alone that has the same effect on a body as the system of forces acting together.
What is a reaction force?
A reaction force relates to Newton’s third law of motion. The reaction force always has the same magnitude but opposite direction of the resultant force.
When is a body in equilibrium?
When the sum of all forces acting upon a body is equal to zero
What are the equations of equilibrium?
E Fv = 0
E Fh = 0
What is the principle of the polygon of forces?
When three or more forces are acting concurrently on a body and the body is in equilibrium, the magnitudes and directions of those forces can be used to form the sides of a polygon.
