Projectile Lab

Procedures: Create a ramp that can be a repeatable launcher for your marble, one in which the marble will not bounce once hitting ground surface. Take 2 photogates and place them 10 centimeters apart, along the edge of the table. (d) The photogates are instruments that will time the marbles speed. Measure the height (h) carefully, in which is vertical to the floor. Time the marble several times as you launch it from the ramp; make sure to catch the marble as it leaves the table. Use the data you collected to calculate Vx. Now use Vx and ∆y to get the range of the marble, in which is ∆x. Once done calculating, place a cup at a spot in which you think the ball will land. Launch the marble three times and record your results. To obtain a new velocity for the marble, change the angle of your ramp (lower or higher). Then continue to do three more trials with three different angles.
Equipment:
Marble Meter stick String Plastic ruler Tape Small weight Calculation Computer with Logger Pro Photogates (2)
Results:
Rolling ∆t for distance Vx ∆y distance
Trial 1 .083s 1.20 m/s .76M .10M
Trial 2 .081s 1.23 m/s .76M .10M
Trial 3 .081s 1.23 m/s .76M .10M
Average .082s 1.22 m/s .76M .10M

Analysis:
Trial 1) Table: 76M Vx = 1.22 m/s A = -9.81 m/s2 Equation: ∆y=1/2a∆t^2 .76M = ½ (-9.81 m/s2) ∆t^2 .76M = -4. 905 (∆t^2) -4.905 -4.905 √0.15= √∆t^2 0.39 = ∆t

Vx = Δx/Δt 1.22 m/s = Δx/0.39s 0.48M = ∆x
Analysis Continued: 1.12 (average time) (0.39) 1.12M = Δx/0.39 Final ∆x= .44M