CommuteRoute 2 - Terminal Velocity Traditional Cache
CommuteRoute 2 - Terminal Velocity
-
Difficulty:
-
-
Terrain:
-
Size: 
(micro)
Please note Use of geocaching.com services is subject to the terms and conditions
in our disclaimer.
Ever had that desire to just keep driving on past the office of a morning ? This is part of the route that I would probably take if this desire got the better of me and I 'ran for the hills' !
The hide is a Micro, you will need to provide your own means of leaving your mark and it is placed alongside a Bridleway so the terrain that you encounter will change depending on the frequency of use.
Please leave the contents of the container as they are.
This cache was placed in recognition of the fact that Mrs HobleyGoblin (Mission Control), completed a Tandem Skydive for charity on the 31st May 2013 !
It would have been an understatement at the very least to say that she wasn't looking forward to this experience. So, being the thoughtful type I thought I would try and put a few facts and figures down on paper for her consideration prior to the event !
Apparently ....
The Terminal Velocity of a falling object is the velocity of the object when the sum of the drag force (Fd) and buoyancy equals the downward force of gravity (FG) acting on the object. Since the net force on the object is zero, the object has zero acceleration.
As the speed of an object increases, the drag force acting on the object, resultant of the substance (e.g. air or water) it is passing through, increases. At some speed, the drag or force of resistance will equal the gravitational pull on the object. At this point the object ceases to accelerate and continues falling at a constant speed called Terminal Velocity.
An object moving downward with greater than Terminal Velocity (For example because it was thrown downwards or it fell from a thinner part of the atmosphere or it changed shape) will slow down until it reaches Terminal Velocity. Drag depends on the projected area, and this is why objects with a large projected area relative to mass, such as parachutes, have a lower Terminal Velocity than objects with a small projected area relative to mass, such as bullets.
Based on wind resistance, for example, the Terminal Velocity of a skydiver in a belly-to-earth (i.e. face down) free-fall position is about 195 km/h (122 mph or 54 m/s).
Higher speeds can be attained if the skydiver pulls in his or her limbs (see also freeflying). In this case, the terminal velocity increases to about 320 km/h (200 mph or 90 m/s), which is almost the terminal velocity of a Peregrine Falcon diving down on its prey.
Competition speed skydivers fly in the head down position and reach even higher speeds. The current world record is 1,357.6km/h (843.6mph/Mach 1.25) by Felix Baumgartner who skydived from 38,969.4m (127,852.4ft) above earth on 14 October 2012. The record was set due to the high altitude where the lesser density of the atmosphere decreased drag.
Thank you for playing. Have fun now.
Additional Hints
(Decrypt)
VPG cnfg tnc va urqtr vs tnvavat nygvghqr.