Circular Motion

How this simulation works

Use the Radius slider to set how far from the centre the object travels (in metres), the Speed slider to set its tangential speed (in m/s), and the Mass slider to set its weight (in kg). Press Start to begin the orbit, Pause to freeze it mid-circle, and Reset to clear the screen. The centripetal force vector is drawn pointing inward alongside the velocity vector tangent to the path — together they show why circular motion requires a constant inward pull to keep the object curving.