A roller coaster has a starting hieght of $1\mathrm{.}61$m$.$ The length of track is $6\mathrm{.}13$m$.$ The final height of the track is $\mathrm{.}22$m$.$ The marble mass is $\mathrm{.}004$kg The marble starts from rest. What would the velocity be at the final location if there had been no energy loss?

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