# Calculate height and velocity given kinetic and potential?

## Homework Statement

I have a table that needs to be filled out. In each column, potential and kinetic energy are given, but height and velocity are left blank. Ex: PE = 20 J, KE = 0 J, h = ?, V = ?

KE = 1/2mv^2
U = mgh

## The Attempt at a Solution

I'm totally stumped. How can I figure out either of these with no mass given?

## Answers and Replies

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RUber
Homework Helper
Could you simply write height as a multiple of mass?
i.e. if PE = 20J $h = \frac{20}{9.8 m}$ where m is in kg.

CWatters