Momentum Essays - Physics, Mechanics, Classical Mechanics, Collision

Energy Essays - Physics, Mechanics, Classical Mechanics, Collision Energy Protection of Momentum Kristin Favreau October 26, 1999 Reason: To show that energy is rationed in a shut framework by representing the protection of force in a flexible crash and an inelastic impact. Strategy: If energy is rationed in a shut framework, the all out force of the framework before impact should rise to the absolute force of the framework after the crash. Strobe photographs will be utilized in the estimations that will demonstrate that energy is monitored. 1.) Elastic impact: A strobe photograph will be utilized that shows an enormous lightweight flyer crushing into a littler lightweight flyer which is at first very still. This will make the littler lightweight plane move and the enormous lightweight plane will keep on moving too. 2.) Inelastic crash: A strobe photograph will be utilized that shows a lightweight flyer crushing into another lightweight flyer which is at first very still. At the point when they impact the two lightweight planes will remain together and will move. - The majority, separations and times will be estimated so as to figure the energies of the frameworks when impact happens. Information: V = d/t P = m x v 1.) Elastic impact: At the point when Mass Distance Time Velocity Momentum Lightweight flyer A Before Collision .31215 kg .009m .6s .015 m/s .00468 Kg m/s Lightweight flyer B Before Collision .15580 kg 0 m/s 0 Kg m/s Lightweight flyer An After Collision .31215 kg .005m 1.0s .005 m/s .00156 Kg m/s Lightweight flyer B After Collision .15580 kg .011m .6s .018 m/s .00280 Kg m/s 2.) Inelastic crash: At the point when Mass Distance Time Velocity Momentum Lightweight flyer C Before Collision .3105 kg .016m 1.0s .016 m/s .004968 Kg m/s Lightweight flyer D Before Collision .3000 kg 0 m/s 0 Kg m/s Lightweight flyers C+D After Collision .6105 kg .015m 2.0s .008 m/s .004884 Kg m/s Computations: 1.) Elastic crash: Before After Lightweight flyer A .00468 Kg m/s .00156 Kg m/s Lightweight flyer B + 0 Kg m/s +.00280 Kg m/s .00468 Kg m/s .00436 Kg m/s 2.) Inelastic crash: Absolute force before = Total energy after mv + mv = (m + m ) v (.3105kg x .016 m/s) + 0 = (.3105 kg + .3000 kg) x .008 m/s .0050 Kg m/s = .0049 Kg m/s End: Through tests with strobe photographs including versatile and inelastic crashes, I had the option to show that energy is contained inside a shut framework. My effectiveness for the flexible crash was 3.54% and my proficiency for the inelastic impact was 1.01 %. Under 10 % of the energy was lost in either crash demonstrating a decent test. The lost force can be ascribed to the exchange from mechanical vitality to warm vitality. Wellsprings of Error: 1.) The separations estimated in the two strobe photographs were evaluated. 2.) The estimation of time was a normal. % blunder = distinction x 100 whole of all 1.) % mistake = .00032 x 100 = 3.54 % blunder .00904 2.) % mistake = .0001 x 100 = 1.01 % blunder .0099