# Calculate magnitude of force acting on some area by falling object

I have simple question: is it possible to calculate magnitude of force acting on some area by falling object?

Let's say I have an object with mass $5\text{ kg}$. I drop that object in height 1 meter. It potential energy was

\begin{align} E_p &= hmg \\ E_p &= 5(9.81) \\ E_p &= 49.05 \text{ J} \end{align}

Near the ground, kinetic energy of object is

$$E_k = E_p$$

So the velocity is

\begin{align} E_k &= \sqrt{2\frac{E_p}{5}} \\ E_k &= \sqrt {19.62} = 4.429 \frac{\mathrm{m}}{\mathrm{s}} \end{align}

Is there any way how to calculate force of object against ground when it falls on it? If not, what something (against ground) can be calculated for this problem?

EDIT: Let's say that ground is from glass, thickness $10\text{ cm}$. What properties would be affected?

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There is no way at all in using physics 101 type skills unless I tell you something like "the ground acts as if it were a spring with constant $10^4\text{N/m}$". In a typical serious application this would be either computed (say FEA) or measured with a pressure transducer, or very often both. –  dmckee Jun 10 '13 at 15:23