think abt it logically. the range is when Ry = 0, then find the time associated with that, and then sub that time into Rx. obviously just use the corresponding SUVAT for these.
it's gonna be anticlimactic asf, idk what ur talking about. it fucking always is, unless u immediately do something fun like have a party or smth after it really won't be anything special.
either ur innocent asf or just trying to be professional, but like im pre sure the avg atar is 70 and what harm would it do to increase it by 1 to one of the 10's for a round number, instead they went with 69 ☠