Physics Unit 4 (Part 2)

In the beginning of class, we had our lab practical, which was basically the same thing that we did in the previous class, where we launched a plastic ball out of a ball-shooter-thing. The reason for shooting the lab/lab practical was to practice our equation solving of two separate variables, which we did in order to predict where the ball would land.  During the lab, we kinda failed a little bit, and we were consistently hitting the same area in between the 2 and 3 section of the paper (yay precision!). HOWEVER, during the lab practical, we consistently hit right around the middle of 5 (yay accuracy AND precision!!) and it was kind of amazing (my group cheered really loudly and I felt really bad afterwards for doing so). If you squint and move your face about an inch away from the computer screen, you can see the little dent that we made and circled with a pencil for better evidence. 

After the lab practical, we basically spent the rest of the day learning about how to launch rockets while predicting various elements like where they would land, or what their velocity would be. We used SOH  CAH TOA, with the original velocity as the hypotenuse, the horizontal initial velocity as the adjacent, and the the initial velocity of y as the opposite. We only used one angle for solving equations to keep everything consistent. For example, if you had an initial velocity of 25 m/s, and the angle was 40 degrees, and you wanted to find the initial horizontal velocity, you would do Cos 40° = VoX ÷ 22 m/s, you would find that the initial horizontal velocity would be 19.2 m/s.