Sliding friction can be related to static friction. For example, if you try to move a piece of furniture on a carpet, at rest static friction acts on the furniture, but after pushing the furniture it starts to slide on the carpet, this is called friction slippage. Fluid Friction: Fluid friction is the friction that exists when an object moves in a fluid. Fluid friction occurs when two layers of fluid move relative to each other. The internal resistance to this flow is called viscosity. “Viscosity is the measure of a fluid's resistance to flow due to its internal friction” Mechanical Forces5 Different Types of Mechanical ForcesThe five types of mechanical forces are: Compression, tension, bending, shear and torsion. Compressive Force: Compressive force is the act of power, effort, or pressure that causes the object to be compressed, crushed, or compacted. Tension Force: Tension force is the force exerted on an object such as a rope cable, etc. when pulled tightly by forces acting on both ends. Bending Force: Bending force occurs when an object experiences a heavy load causing it to bend under stress. .Shear force: Shear force occurs when a force pushes on one part of a body in one direction and on the other part of the body in the opposite direction. Twist