Question

2) Suppose that you now place the launcher on your desk, position it horizontally, and launch the projectile. A) Generally, what can be said about the behavior of the vertical and horizontal components of the ball's velocity? B) With an assumed launch velocity V and a launch height h, Calculate how far the ball will travel before it hits the ground. Show your calculation an in your calculation make sure to explain your reasoning, and the appropriate principles involved. C) From you uncertainty in the speed and height in the tables estimate the uncertainty of your prediction.

Answer 1

Solution

remain motian šo we Solusian A) Grenerally in the case of any projectile the horizontal weledly woll the same throughout the but vertical velocity will change Cat will increase with time). B) know grow feational acceleration ga 9, 80/32 is acting downward. Its initial vertical relocity is zero (120) & Ball is shot horizontally). het it took t time to reach ground ( cover a height h. Thus, S=utt al2 -> h = cost +1 (918)+ E2 {a=9=9,8 m/e2} 4.9€2 a Thus, ſ 4.9 constand coner a horizontal distance Since the beell will within this time, geven horizontal velocity Nis d=vt bay, 02 419 1 Thus, c) het v has aus uncertainty AV in it and h has ab in it Ad = 0 (Ath in the ar + V ( 3 h " * Ah) -) Uncexfanity in voh vhi Mears values and 27419h Avah Uncer falnities in velaty Ad = Avt ~ 4.9 and height