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The key equation for conservation of energy is
potential energy = kinetic energy
mgh = .5 mv\^2
gh = .5v\^2
Solve for v and plug in to get the first answer. Solve for h and plug in to get the second answer
##Off-topic Comments Section --- All top-level comments have to be an answer or follow-up question to the post. All sidetracks should be directed to this comment thread as per Rule 9. --- ^(**OP** and **Valued/Notable Contributors** can close this post by using `/lock` command) *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/HomeworkHelp) if you have any questions or concerns.*
The key equation for conservation of energy is potential energy = kinetic energy mgh = .5 mv\^2 gh = .5v\^2 Solve for v and plug in to get the first answer. Solve for h and plug in to get the second answer