With uniformly accelerated motion without an initial velocity with an acceleration of 1 m / s2

With uniformly accelerated motion without an initial velocity with an acceleration of 1 m / s2, the body traveled a path of 4.5 m. Its speed at the end of the path became equal?

V0 = 0m / s
a = 1m / s2
l = 4.5m
l = (v ^ 2-v0 ^ 2) / 2a
2al = v ^ 2-v0 ^ 2
v ^ 2 = 2al + v0 ^ 2 = 2 * 1 * 4.5 + 0 = 9 (m / s) ^ 2
v = 3m / s
Answer: the speed at the end of the path is 3 m / s