Question

III Which of the following is the correct graphical representation for C-(A-B)? (Symbols in bold type are vectors) IIII] When a ball is thrown vertically up with some initial speed it slows down as it moves up reaches a certain maximum height, and then falls straight down. Assume no air friction. During the trajectory of the ball in the air, which one of the following is true? lal The acceleration and velocity of the ball both increase on the way down Ibl The change in the speed of the ball is the same for any two equal spatial intervals. lel The change in the speed of the ball is the same for any two the ground IVJ A tennis ball is dropped from the top of a tall building of height H. The ball hits with speed v. At height H/2 the speed of the ball would be: b] less than w/2 lel greater than v/2. a] equal to v/2

please explain

Answer 1

Son motion accele atim (a) remaing Conttent change in speel may be dlibeveat Using Cover vation Gnsy at t, an e ebbev IV ound -level ナー20 geater than So option 2) da γ'ght choice.