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A free body diagram of an object on a smooth inclined plane shows forces acting on it, including gravitational force, normal force, and their components. With no friction, motion is influenced by the component of gravity parallel to the plane.
Physical friction force. Car on ramp, Static and kinetic friction force
Three blocks are connected by a rope over a fixed pulley. Two rest on a frictionless inclined plane, linked by the rope, while the third block hangs freely, creating a dynamic mechanical system.