Iknow that this is a lot to ask for but i am really struggling with these and my teacher is sub-par, feel free to assist with as many or as few as you want, i really appreciate it.

a cyclist accelerates down a hill from rest at 1.5 m/s2. assuming the acceleration is uniform, how long is required to reach a velocity of 6 m/s?

a cannon ball is thrown straight down from a tower with an initial velocity of 50 m/s. after 2.0 s, what is its final velocity?

what height will be reached by an arrow shot straight up at an initial velocity of 15 m/s? (ignore air resistance.)

a cyclist, riding at a constant speed of 5.0 m/s, sees a flash of lightning. wanting to get home quickly, she accelerates at 1.0 m/s2 for 4.0 s and then rides at a constant speed for 30.0 s. if she then takes a further 12.0 to slow down uniformly to rest, the total distance traveled after seeing the lightning flash is…?