The brick and the ram

Today I made a battering ram,(On the left) a battering ram is a contraption that was used from 9 century BC until this very day.


If you are wondering what the science is? Well, here, energy gets storage in the pen and force goes in the wall. it was made out of wood and the top made of metal. The top was usually in the shape of a ram head which is why its named "The Battering Ram" 

 I made a cage out of Lego. I tied rope to the pen and the cage. Then each time I pulled the pen a cm farther the brick flew farther

Then I made a graph. It told me if I pull it from 0 cm to full blast where it will land. After I put a gram of weight on the pen and did full blast. It went extremely far.