this is the question: i have no idea how to start this, my initial thougts were to plug things into kinematic equasions to get the acceleration but i really dont know. i know tangental acceleration is the derivative of the velocity equasion, but i just dont know how to get the velocity equasion. do i plug numbers into the formula "vf= vi + at" ? if so, then what would my acceleration be in that formula? if not, what other formula can i use? thanks for the help.