6. Intro to Forces (Dynamics)
Types Of Forces & Free Body Diagrams
6. Intro to Forces (Dynamics) Types Of Forces & Free Body Diagrams
8PRACTICE PROBLEM
Objects remain in their state of motion unless acted on by an external force, a phenomenon called inertia. To demonstrate the effects of inertia using rapid deceleration, a passenger lowers a block onto a frictionless surface at the back of a truck moving at constant velocity (the block has the same velocity as the truck). There is nothing securing the block to the surface. i) Sketch a free body of the block on the surface. ii) State the direction of the external force on the block (if any).
Objects remain in their state of motion unless acted on by an external force, a phenomenon called inertia. To demonstrate the effects of inertia using rapid deceleration, a passenger lowers a block onto a frictionless surface at the back of a truck moving at constant velocity (the block has the same velocity as the truck). There is nothing securing the block to the surface. i) Sketch a free body of the block on the surface. ii) State the direction of the external force on the block (if any).