In Figure $7,$ a spring with $k=550\frac{N}{m}$ is at the top of a frictionless incline of angle $=37\mathrm{.}0.$ The lower end of the incline is distance $D=1\mathrm{.}00m$ from the end of the spring, which is at its relaxed length. What is the speed of the object when it reaches the lower end of the incline? $[$Ignore air resistance$]$