Can you solve these physics riddles? ft Simone Giertz - Part 1/3

1. Both spheres have the same dimensions including surface "smoothness." 

2. With all dimensions equal, the difference between the two spheres is density. 

3. Density is the ratio of mass to volume, which in this case, the spherical volumes are equal meaning the mass is different. 

4. In falling, there are two forces acting on an object: drag and gravity. Given time in free fall, these forces (force is mass times an acceleration) will equalise and a terminal velocity is achieved (it cannot fall faster due to acceleration equalisation). 

5. Terminal velocity is the square root of the ratio: 2 x mass x gravitational acceleration / fluid density (of air) x area x drag coefficient (spherical). 

6. Gravitational acceleration, fluid density, area, and the drag coefficient are all the same. 

7. The difference between the two objects is mass therefore, they differ in terminal velocity. 

8. All things considered, The greater the mass, the greater the terminal velocity meaning the metal sphere will hit the ground sooner despite having the same acceleration as the wooden sphere. 

Non?