In the hammer throw, a wire exerts this force on the hammer, keeping it moving in a circle
In the 
sport called throwing the hammer, an athlete swings a heavy weight ... As long as 
they keep pulling the wire, they're applying a force, which is... [DOC] [TLE] Circular motion - Light and Matter [PAR] e / To make the brick go in a circle, I had to exert an inward force on the rope.