In this project we made a trecuchet that had to launch a rybber ball as far as it could hold. There was a lot of trial and error with this. Our arm for the machine broke five times before we found the perfect balance launching it 25 meters.
Here is our work of efficiency document where we were asked many questions on our build.
Our trebuchet is mostly made out of wood. We had a wood stopper that ran on top of our two legs. We had a metal screw as our axle. We have 2 screws at the bottom to hold our rubber bands.
8 modifications you made based on class experiments and WHY you made each modification (science reasoning)
Stopper, bend nails, no stopper, cup, lube, projectile mass, base stability, and rubber bands.
3. Technical Specifications for your machine including:
A.Mass of your projectile. .013 kilo grams
B.Horizontal Distance. 25 meters
C.Time in air. 3 seconds
D. Vertical Distance. 11.03 meters per second
E. Horizontal velocity. 8.33 meters per second
F. Vertical velocity. 29.4 m/s
G. Total velocity. 18.9 m/s
H. Release angle. 28 degrees
I. Spring constant. 084 n /m
J. Initial Spring Potential Energy. 24 N
6 Main selling points of your design. The selling points of our Bucharest are : we have a very strong build that breaks most arms for our machine, It is not loud it is quite.