With reference to the figure given below 6.1 Earth which is attracted on a body is represented by the single force i.e W (= mg) which is based on assumption. This gravity force is focused to a certain point on the whole body. The center point is known as center of gravity. All the other elements of the body are also attracted by earth. Forces of attraction are parallel which is based on assumption as the dimension of the earth is larger than the body. The forces acting in whole body is nature distributed. We will come across with the best result about these forces which are distributed and it will referas W = mg which will act on the whole body including center of gravity.
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- Introduction to statics
- Introduction to vector algebra
- Two dimensional force systems
- Introduction concept of equilibrium of rigid body
- Friction introduction
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