Can you post a labeled diagram of your "vertically horizontal circle on the underside of a dorm" please?bobbeh said:Homework Statement: Draw the FBD including Kinetic Friction, Gravity, and Normal force
Relevant Equations: Fnet = mv^2/r
weight pointing down
Fn pointing down and to the left (to the center of the dome)
Fs pointing ..?? Should it not be off the page? Maybe up and off the page to oppose movement + gravity?
The FBD (Free Body Diagram) of a toy car moving in a vertically horizontal circle on the underside of a dome shows all the forces acting on the car at that particular moment. These forces include the weight of the car, the normal force from the dome, and the centripetal force keeping the car in its circular motion.
The weight of the car is represented by a downward arrow pointing towards the center of the Earth. This is because gravity is pulling the car towards the ground.
The normal force is the force exerted by the dome on the car to prevent it from falling through. In this case, the normal force acts perpendicular to the surface of the dome and is equal in magnitude to the weight of the car.
The centripetal force is the force that keeps the car moving in a circular path. In this case, it is provided by the tension in the string or wire that is attached to the car and anchored to the center of the dome.
As the car moves along the dome, the direction and magnitude of the forces in the FBD will change. The weight and normal force will remain constant, but the direction of the centripetal force will change as the car moves along the circular path. Additionally, the FBD will also show the direction and magnitude of any other external forces, such as air resistance or friction, that may affect the car's motion.