Coplanar forces can be resolved into components along the x and y axes. These component forces are called rectangular components. Rectangular components can be represented in two ways:
- Scalar notation
- Cartesian vector notation
Scalar Notation: When using the scalar notation the rectangular components of force F is written Fx and Fy.
- Fx represents the component in the x-axis
- Fy represents the component in the y-axis
Refer to the image below.
Cartesian Vector Notation: When using the Cartesian vector notation, the rectangular components are represented in terms of unit vectors i and j. Unit vectors are vectors that have a magnitude of one and they are used to represent direction. In this case:
- i represents direction in x-axis
- j represents direction in y-axis
Refer to the image below.
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