Pros
- simple design
- easy to make
- retestable
- uses newtons 3rd law
- a lot of potential energy in rubber bands
- slingshot design used in toys
- upgrades easy to make
- car is light and moveable
- travels in a straight line
- can spin of course
- rubber bands can break
- takes a lot of attention to detail to load
- sponges car may bend when being loaded
- shoot has to be reinforced to make sturdy
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