1 Introduction You now have (from the prelab) a general expression for determini

Question

1 Introduction You now have (from the prelab) a general expression for determining where the target should be in terms measure. Next you'll measure these parameters, determine where the target should of parameters you can be, place the target appropriately and hit it... it is to be hoped. 2 Procedure tachable; be sure you reattach it with the correct orientation. mass of the ball m,0661 Kq Record the masses of the ball and of the pendulum here, including uncertainties. The pendulum is de correct orientaon.7.2 9 7,3 g 73,3 ofthe pendulum m,-0.35% mass of the pendulum m. you do, label it ms + mp) Record the height of the launcher above the floor, including uncertainty. ,- .988 M tg (You could measure the combined mass of the pendulum and the ball in place of that last measurement With your goggles on, put the ball in the launcher and cock the launcher. If your launcher has than one position of detent, make sure that you always use the same position. Measure the height o initial position. Fire away! If the launch is successful, the pendulum-ball system is at a new pos Measure the height of the new position, again including uncertainties. Note: Although the initial p of the launcher is the origin and hence is height zero, you should measure its height either above th or above the bench. Do likewise with the final height. Repeat several times and take the average difference between the initial height and the average final heights is h. Every lab partner should do one partner's numbers vary greatly from the team average, that member should repeat the trial (t thing to consider is if the launcher is in the same position of detent).

Explanation / Answer

Here, measured distance = 1.24   m

=>   Loss in initial kinetic energy = Gain in Gravitational potential energy

                                                      = mgh

                                                     = (0.25 + 0.0661) * 9.8 * 1.24

                                                      =   3.841 J

Initial kinetic energy = (0.25 + 0.0661) * 9.8 * (1.24 + 1.16)

                                 = 7.434 J

=> % of kinetic energy lost =   (3.841/7.434) * 100

                                                = 51.66 %

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.