By adjusting the length of the bridge will be three sizes 15 25 and 35 meter lengths to cut the size of the bridge was changed to the natural frequency of the bridge which resulted in a change .
The bridge length is 3 meters in size, is 15 to 25 and 35, where the length is changed to make the page size cut of the bridge, it will be changed, which resulted in the natural frequency of bridge change. .
The Bridge will be adjust the length is 3, 15, 25, and 35 meters long, the change to make a cut-off of the bridge, it will change to the natural frequency of the bridge change.