2. A chain exerts a force of 1200N [up] on a beam which experiences a force of gravity of 1100 N [down]. Draw the FBD of the beam and determine the net force on the beam. Ku C [ans: 100 N [up]] 3. You push a book across a table to your friend with a force of 6.5 N [E]. The force of friction on the book is 4.5 N [W]. The normal force and the force of gravity have a magnitude of 7.5 N. Draw the FBD of the book and calculate the net force on the book. K/U C [ans: 2.0 N [E]]

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Measuring site work, Excavation and Piling

Bid drawings typically include very little material about the precise requirements of site work operations, measuring site work and excavation work differs from measuring most other works on a construction project. The actual site work conditions are not provided and also the dimensions of the excavations are not known during the pre-construction phase. The precise measurement of the excavation and backfill of the earth material and topsoil is important for a contractor to decide upon the total cost required for the process. All the works should be carried out under OSHA (Occupational Safety and Health Administration) standards to ensure the safety of the workers.