Freight trains can produce only relatively small accelerations and decelerations. Part $($a$)$ What is the final velocity, in meters per second, of a freight train that accelerates at a rate of $0\mathrm{.}085$ m$/$s$2$ for $8\mathrm{.}75$ min, starting with an initial velocity of $4\mathrm{.}2$ m$/$s$?$Part $($b$)$ If the train can slow down at a rate of $0\mathrm{.}75$ m$/$s$2,$ how long, in seconds, does it take to come to a stop from this velocity? Part $($c$)$ How far, in meters, does the train travel during the process described in part $($a$)?$Part $($d$)$ How far, in meters, does the train travel during the process described in part $($b$)?$ please answer everything!!!!