what i need is Instructions on how to build a cross bow
Your assignment is to build a catapult which can propel a marble the maximum distance.
HOWEVER be careful….. there is also an accuracy condition (and a
multiplier…..see below). ADDITIONALLY your distance (inches) will be divided by the weight (ounces) of the structure to give a final performance number. Please also account for all of the materials that you use. I would like you to also include a procedure for building this just in case I want to build one at some point in the future. You will also be subjected to an additional multiplier based on the consistency of performance (huh??)…..let me explain:
You must land the marble in the basket 3 times in order for the distance to count
If you land the marble 3 times in 10 tries the multiplier is 1; 3/20 the
multiplier is
0.8 3/30 is 0.6 3/40 is 0.4 3/50 is 0.2 3/60…..give-up you are defeated