The Power of the Start comes from Gravity
Galileo taught us that it doesn't matter what size body we have, we are all going to travel at the same velocity while in the air. The value adopted internationally for gravitational acceleration is 9.806 meters per second per second. That's approximately four or five, maybe even six meters per second from the height of a starting block.
In contrast: At micro gravity on the space shuttle, it takes a leisurely four minutes to fall one foot.
Definitions:
Gravity -- The force of attraction between all objects in the universe. Near the surface of the earth the acceleration due to gravity is 9.8 m/s2.
Terminal Velocity -- The point at which air resistance offsets the weight of a falling object, stopping its acceleration.
|
Falling time (sec) |
Speed (m/s) |
Distance Fallen (m) |
|
0 |
0 |
0 |
|
1 |
10 |
10 |
|
2 |
18 |
27 |
|
3 |
24 |
51 |
|
4 |
29 |
80 |
|
5 |
33 |
113 |
|
6 |
36 |
148 |
|
7 |
38 |
186 |
|
8 |
40 |
226 |
|
9 |
41 |
267 |
|
10 |
43 |
310 |
| Note: For "Propeller Heads", click here for more Physics and information on "Free Fall", "Velocity", "Air Resistance". More Info for Propeller Heads. |
