Mechanics

Apuntes

Mechanics and the Environment Bilingual General High School Third Semester Stage 4. Dynamics: Applications of Newton's laws 4.1. Applications of Newton's laws In order to have good results when applying Newton's second law of motion, we have to know and recognize all the forces acting on a body. That is, we must construct the corresponding free-body diagram, which consists of a graphical representation, in a coordinate system, where we place all the forces acting on the object. A free-body diagram consists of the graphical representation of all forces acting on a object in a coordinate system. Examples of free-body diagrams are shown below: A block on a rough surface A block on a rough inclined surface. For the vector analysis of forces and problem-solving, we need to elaborate a free-body diagram. The general procedure in the elaboration of a free-body diagram is: 1. Identify all the forces acting on the body and determine if the motion is on the horizontal plane (x-axis) or the vertical plane (y-axis). 2. Draw the free-body diagram with the forces identified in the previous step. 3. If there are forces in any of the quadrants, decompose them into their rectangular components F x ...