Using Net (F = m x a) or Normal Force (F = m x g), choose a scenario related to an earthquake to calculate the force of an object involved. For example:

a 10 kg brick falls from the top of a four story building. Assume it starts with an initial velocity of 0 going downwards and that no other forces are acting on it (also ignore the frictional force of wind sheer). Remember that g = 9.8m/s2. How much force does the brick hit the ground? Include the formulas, show all work, and include units. Educate your audience!