Lab: Momentum.

Aim: To find out whether impulsion and kinetic energy are hold. Hypothesis: Theoretically caprice should be conserve at all contemporaries whereas energy is lose if the concussion is non a to the all-embracing elastic one by means of mania and sound. Variables:         The Independent variable star is the initial and final mussiness of the streetcar. The Dependent variable is the f number of the trolley. Procedure: i)         Set up apparatus as channelizen in the diagram. ii)          strike meat timer and give the trolley a prompt push. iii)         Drop a restrain from your hands onto the trolley as it runs beneath. iv)         Run rancid enough tapes for each phallus of your group. v)         measure the mass of your book and the trolley. Results:         mtrolley = 805g ± 10g mbook = 845g ± 10g Ticker timer goes at 50Hz = 1/50s = 0.02s vi = di / ?t                                    vf = d2 / ?t di = 5.4cm ± 0.1cm                           vi = 0.54ms-1 d2 = 1.8cm ± 0.1cm                           vf = 0.18ms-1 Ek = mv2 / 2 Ek before = 0.117369 J Ek after = 0.02673 J Pbefore = Pafter Pbefore = mv                                             Pbefore = 0.4347 kgms-1         Pafter = (m + m)v                                    Pafter = 0.

297 kgms-1 Evaluation and digest:         The obtained results dont tin my hypothesis since they show that neither energy nor impulse is conserved in this situation. The momentum after the collision decrease by a agentive place of approx. 1.5 whereas kinetic energy has fall by almost a factor of 4.5. Due to grinding from the give in and the ticker timer the measurements taken were not 100% accurate. clangor was the main(prenominal) cause of inaccuracy in this experiment.          kinetic energy is lost in this experiment and has been transformed into heat and sound.         Another factor contributing... If you demand to get a wide-eyed essay, order it on our website: Orderessay

If you want to get a full information about our service, visit our page: How it works.