Projectery :: essays research papers

ProjecteryplatMethodThe A3 sheet of white paper was attached to the display batting order, with drawing pins, and the board was placed underneath a book, to put it on a refined incline. Using a protractor, lines were drawn on as a surpass for where to line up the marble. The lines were drawn at 30 O, all the stylus to 70 O, at 5O intervals. A runner was needed to drop the marble down to the inclined board. A piece of card was utilize, that was bent in one-half to create a caterpillar track. Wherever the marble went off the board, was marked. The return was confirmed by measuring from the detail the marble was thrown to the point it fell of the board.We produced the test a couple of times to find the opera hat results.ResultsAngleRange (cm)30 O24.335 O25.940 O26.645 O27.050 O27.855 O26.860 O24.665 O20.670 O18.2 codaPrediction At 45 degrees the marble volition travel the longest.At 45 O the vertical velocity and the horizontal velocity atomic number 18 the same.ExampleIn t he vertical direction the object decelerates at 10ms-2(approx).It result take exactly 1 second for it to reach its maximum height. This is because of the make outing. 10ms-2 agent every second velocity decreases by 10ms-1. It will take half a second to decrease by 5ms-1. Therefore, 5/10 = 0.5, falloff in velocity / deceleration. 2 x 0.5 = 1second.During this one second, the object will travel a horizontal keep. Range = horizontal velocity x time= 5 x 1= 5mThe experiment that has been undertaken here has at rest(p) slightly off course simply because of the prediction being 45 O. This experiment has shown that it reached its height at 60 O, which could have been interrupted by several things. The things that could have altered the final results are the followingThe runway may not have been perfectly on level with the lines of angle.The board wasnt at same height.The speed of movement at the starting time from the marble.The runway wasnt steady.The runway may have been at diamet ric heights.To produce a fairer test, an average could have been taken, or a more suitable runway. I believe that a bigger board and easier lines to follow would have made it much easier and more accurate.How applied to sport?Projectery is used in almost every sport, e.g.Javelin When throwing the javelin.Shot put When throwing the shot put.football When kicking the ball.Projectery is used in sport as many use this to judge the best way to be able to get the distance that they want.