Hello! I'm trying to enter a physics contest with my college and it is based on launching a junior baseball ("t-ball" 145g and aprox 5.7cm diameter). I have to be able to transport it so I am considering using a design similar to the bullpup slingshot with the bands wrapping around pulleys to...

Hi. My name is Dwight. I'm a high school physics teacher and I've stumbled upon this website this past summer (sorry for the late intro). I've used this site (and YouTube videos) a few times in my classroom. I've had my students use the slow motion videos to analyze the motion of the...