The skier covered an 80m incline in 18s moving with an acceleration of 0.3m / s ^ 2 What is the skier’s speed

The skier covered an 80m incline in 18s moving with an acceleration of 0.3m / s ^ 2 What is the skier’s speed at the beginning and at the end of the slope?

Given:
s = 80 m
a = 0.3 m / s ^ 2
t = 18 s
Find: v0 =? v =?
Decision:
Let’s write down the path formula
s = v0t + at ^ 2/2
Let us express the initial value from it. speed
v0 = (2s-at ^ 2) / 2t
v0 = (2 * 80-0.3 * 324) /2*18=1.7 m / s
Let’s write the formula for the speed at the end of the path
v = v0 + at
v = 1.7 + 0.3 * 18 = 7.1 m / s
Answer: v0 = 1.7 m / s, v = 7.1 m / s.