A physics book of unknown mass is dropped from a height of 5m above the ground. (Use g = S 1.) What type of energy does the book have initially? Respond in the first text box. 2.) What type of energy does the book have just before it hits the ground? Respond in the second text box. 3.) What is the speed of the book just before it hits the ground? Show your solved equation in the math answer box (you should see a mathematical answer!) 4.) Write the units for your final answer in the last text box.

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Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.