Question

1) (23.0 pts) A student in a physics class decides to test their understanding of Projectile Motion theory by determining how fast they throw a baseball. On a nice day, with essentially n wind, they go out to a park to perfonm the experiment. The student throws the baseball to get an idea of the angle at which they will launch the baseball. By using the idea that the length from the middle of one's chest to the finger tips is approximately half a person's height, and by leaving their am in place after seleasing the hall the sudlent develop the following triangle Height of release as measured from student's shoulder to position where ball is released, 19.00 inches Angle of release, 8, a) (2.0pts) From the triangle, determine the sngle of release, 0o The student then throws the bull as hed as they cun, and mentally times how long it takes the ball to hit the ground from the instant the bal loses contact with their hand. The stuadent approximates a time of 3 250 seconds. The stuxdeot also approximates that the ball falls a vertical distance of 74.00 inches as measured from the where they release the ball to the yroumd. The image below shows the path of the ball and other related purameters Initial velocity,v of the ball Initial angle of release, s, Vertical distance the balil falls; 74 inches

Answer 1

ps 옛.ven, 9.וץ 32.8 m 5 t222 783 ナ 卡

Sl 2P. 리-9.81 X 3.2 So o qines =2m 2 8 2) 2xg.8 (221)2 172.1 m a) 너