Omega+3+.Lab+Report.

=Rocket Launch Lab Report By:Reggie, Arian and Avery.= = = __ Purpose: __ The purpose for this lab is to examine some of the major concepts that we have studied in Physics 30 through the use of a model rocket. __ Materials: __ One model rocket, One engine, Storage box, Utility knife, Glue/Hot glue, Nose cone (two paper cups), Shroud Lines (strings), Parachute ( plastic bag), Shock cord mount (paper), Shock cord (long rubber band), Body tube (two layers of paper towel roll), Fins (three orange plastic fins), Red paint, Black spray paint, Paint brush, Engine hook, Engine mount assembly, Engine holder (coin roller), Centering rings (paper foam), and Scotch tape. __ Procedure: __ We first made a Wiki and after a week of nothing we finally started the rocket. We use white glue to stick two paper towel rolls together for our body tube to make it thick and solid. We then took pictures. When we spotted that the tube was dry, Arian put our orange plastic wings on the rocket. After using hot glue and waiting for it to dry, we were working on our nose cone by attaching two paper cups together. Next the three of us were separately working on different tasks. Avery was working on the parachute, Reggie was working on the shock cord by gluing it to the nose cone, and Arian was continuing to work on the wings. After everyone finished we started to work on the engine mount assembly and hook. We were unsuccessful but we will try again tomorrow. But tonight Avery will focus on colors for our rocket. After Avery brought our rocket, it was now spray painted black. Arian and Reggie worked on sticking blue foam to stable the engine to the tube. We then painted the symbol "OMEGA" on our rocket with the color red. After we put two small straws so the stick can insert our rocket. Hopefully our efforts we put on our rocket is successful. We were about to launch our rockets. We then realize in order to launch the rocket we needed to stabilize the foam that would hold the engine. Mr. K told us that we would have a chance to launch it on Thursday. After that period, OMEGA 3 glued the foam which turned out to be solid and ready for takeoff in 2 days! __ Data and Calculations: __ Time up of our rocket: 3.87 seconds

Time down of our rocket: 0 seconds

Descent phase: Undefined

Thrust Phase (Fnet): 188

Angle of our rocket: 9 degrees

Fair: -660

Average Velocity Up: 15.8/3.87 =4.08m/s

Average Velocity Down: 15.8/0 =undefined

Height from trigonometry: 9 degrees (given) 100m away (given) 3.87 seconds up (given) 0 seconds down (given)

tan9= x/100 x=15.8

Thrust Phase: Fnet=ma=Fair + Fa m= 86.2 kg  a?

15.8=0(3.87) + 0.5a(3.87s) 2 15.8= 0.5a(3.87) 2 2.11m/s 2 = a

Fnet=ma Fnet=86.2kg x 2.11m/s 2 Fnet=188

Descent Phase: Fnet=ma= Fair + Fg Vavg= d/t Vavg= 15.8/0 Vavg= Undefined

2nd Vector Equation: Fnet=Fair + Fg + Fa Ma= Fair + mg + 2.51 188= Fair + 845 + 2.51 -660= Fair __ Sources of Error: __ - Are nose cone was two paper cups which affected the flight of our rocket. -We had no descent phase because the rocket hit the ground first before the parachute opened up -Are straws were not straight which affected the flight of our rocket. The wind made our rocket unbalanced. __ Conclusion: __ Our group learned about many forces that our rocket was acting on while it was moving. We learned forces such as the force of air and the net force. We used kinematic formulas in chapter 5 and used them in our project to find information from our rocket. Our group kept in mind Newtons three laws during the project. It was an awesome experience.