On Friday, September 16, 2016, at 10:25 to 11:07,  Dan Fullerton presented a lab.  Unfortunately,the best 22 students of the high school, failed!  Thankfully, Mr, Fullerton allowed us to redeem ourselves by writing what the right answer was and why we failed.  This lab, Mr. Fullerton assigned to us was to shoot a projectile and predict where it would land.  By doing this we had to use kinematics.  We failed this lab for many reason. One main one was our lack of communication among our class. We didn't agree on measurements and we didn't communicate on answers. What we should of done was made four or five groups to figure out the answer and then at the end compare results.  Another reasons we failed was that we forgot to set our direction.  We didn't dictate what was positive or negative.  In our Y-component,  we assumed that everything was positive, but this was untrue.  If we made the down direction positive, then the height and acceleration is positive, however the initial velocity is negative.  Another reason why we failed, was that we had a variety of time of when the projectile was shot.

When I redid this lab, the distance I found was 199.7 cm.  I found this by calculating the initial velocity of the X component and Y-component.  I made sure that I dictated the direction.  Then I used Pythagorean Theorem to find the initial velocity of the projectile.  Then, when Mr. Fullerton changed the angle and height of the projectile, I had to find the the X and Y velocity components.  I used the initial velocity, multiplied it by  cos (the degree) and sin (the degree).  Then I found the time in the Y-component, which is the same for the X-component.  Then I multiplied it by the new X velocity component to find my distance.