engineering dynamics quastion

A 200lb bungee jumper jumps from a bridge 130 feet above a river. The bungee cord has an unscratched length of 60 feet and a spring constant of k=14lb/ft
Using the computer program Excel compute and plot graphs of the jumper’s velocity and acceleration as a function of the distance from the bridge. Consider only the time from the jump to the maximum stretch of the cord (don’t compute the rebounding part).
Question:
a) How far above the river is the jumper at the lowest point?
b) What is the jumper maximum velocity and where does this occur?
c) What is the maximum tension in the cord and where does this occur?
This is Free Fall: F=ma
What is wrong with my equetion?
I am fine on my acceleration but my Velocity equation is not working.

because when Y=118.4 my Velocity should be 0

So help me solve for Velocity