Procedure: 1. Put the metal ball into the Projectile Launcher and cock it to the long range position. Fire one shot to locate where the ball hits the oor. At this position. tape a piece of white paper to the oor. Place a piece of carbon paper {carbonaside down] on top of this paper and tape it down. 1|t'tihen the ball hits the oor. it 1tvilt leave a mart: on the white paper. 2. Fire about ve shots. 3. Measure the vertical distance from the bottom of the ball as it leaves the barrel to the oor. [This position is marked on the side of the barrel.) Record this distance in Table l. 4. Use a plumb bob to nd the point on the oor that is directly beneath the release point on the barrel. Measure the horizontal distance along the oor from the release point to the mean point of impact (MPH on the paper. Record in Table l. 5. Using the vertical distance and the average horizontal distance. calculate the time of ight and the initial velocity of the ball. of. To recall how this is done. refer to your previous Projectile Motion lab. Bomber Problem section. Record 1Itrtttiues in Table I and Table 3. Table I: Determinin_ the Initial 1'Jeloei 1|liertical Distance = 1 i 2m Horizontal Distance to MP1: 1'; 1'] HM _ Time.t= vig ,. [+1.55 Mtslsimso" Ra/HF}? :: can SHOW ALL YOUR CALCULATIDNS BELOW. PART II: BALLISTIC PENDULUM Set Up: 1. Find the masses of the ball and the catcher and record in Table 2. 2. Suspend the ball catcher (measured to its bottom) as a pendulum as explained in the Appendix 2 so it is suspended about 65 + 5 cm below the support plate. 3. With the Projectile Launcher mounted as in Figure 1, clamp the suspended ball catcher directly in front of the muzzle by sighting through the hole in the back end of the Launcher when it is not loaded. The Projectile Launcher should be about 1 cm from the front of the ball catcher. 4. Attach a thread to the ball catcher and string it through the Velcro assembly (see Appendix 2 instructions) on the base of the Launcher. Procedure: 1. Load the Launcher with the steel ball on the long range setting. Fire a test shot to see how far out the thread is pulled. Also, make sure the steel ball is wedged in the center of the Styrofoam piece of the Ball Catcher. If it is not, then realign the ball catcher as explained in the Set Up above. Repeat until the steel ball is wedged in the center. 2. Pull a few centimeters of the thread back through the Velcro, leaving the rest of the thread slack between the Launcher and the catcher (see Appendix 2). When the ball is shot into the pendulum again, the thread will become taut just before the catcher reaches its maximum height. This reduces the effect of friction on the thread. 3. Fire the ball into the pendulum five times. After each trial, pull the pendulum back until the thread is taut and measure the height, h, above the level of the muzzle to which the pendulum swung. Make sure you do not pull out any extra string when measuring by placing your thumb at the end of the Velcro strip. Table 2: Ballistic Pendulum Data Mass of Ball =_66.03q Table 3 Mass of Catcher = 203. 68q Average Height, h .05 524 Velocity, v Height, h Calc. Muzzle Vel., V. = 1 - 069m and from Table 1 Vo = 2 .054mm Difference 3 050 M 4 *Be sure to look at Question 2 at the end of the lab before putting your equipment away!Analysis: 1. Calculate the average of the heights in Table 2 and record the result in Table 3. Using the average height, h, calculate the velocity immediately after collision, v, and record in Table 3. Show your sample calculations below. 2. Using the velocity calculated in the previous step and the masses, calculate the muzzle velocity of the ball, vo, and record in Table 3. Show your calculations below. 3. Calculate the percent difference between the muzzle velocities, ve and ve'(without the catcher), found in Parts I and II. Record in Table 3. Show calculations below.Duesllum: Show all your work on a separate pleee of paper. What percentage of the kinetic energy is lost in the collision? Use the masses and 'I'BllJCiIiBS to calculate this percentage. 9.5 Ln\" = M x 100% \"Reefer: Hot".r does the hcighl to which the pendulum swings change if the hell is bounced eff the ntb'ocr btunper on the front of the catcher instead of being caught? Try It but he sure to more the catcher tenher away from the Launcher so the steel ball won't rebound into the L'ttlt'tcl'ter and damage the Launcher. Was momentum conserved during the impacts? Base your answer on your calculations. If not. what happened to it? A bullet ofn'i-E} g mass is led horizontally into a ll] kg block which is suspended in; a ballistic pendulum. The impact causes the center ef mass of the bloc}: to rise It] cm. Calculate the speed of use bullet at the instant of impact. Believe it or not. this experiment was acmelly' dome by your instructor in their equivalent lab. Does the force of grin-lit}I aifeet the hertenntet component of the projectile's velocity. Justify answer using physics concepts