Home > Climbing Locations > Climbing Piton

Climbing Piton

June 17th, 2011 Leave a comment Go to comments


Climbing Piton
Climbing Piton
help with velocity problem? 10 Pts immediately?

At time t = 0, a Rock Climber accidentally allows a piton to fall freely from a high point on the Rock Wall to the valley below him. Then, after a short delay, his climbing partner, who is 10 m higher on the wall, throws a piton downward. The positions y of the pitons versus t during the fall are given in Fig. 2-35. With what speed was the second piton thrown?
Fig. 2-35. —> http://i55.tinypic.com/20axxrd.jpg

I know a=9.8 for the 1st guy and t= 3s when both pitons reach the same point, how do you figure out the velocity for the 2nd piton?
i get it wrong again, maybe we should calculate the time delay, but if i have 2 unknowns in that equation.

Since the displacments are the same:

Using Y = Yo + Voy t + (1/2) gt^2
With down as positive direction

For lower climber:
Since this was in free-fall
Y = 0 + 0 + (4.9)(3)^2
Y = 44.1 m

For the second climber:
44.1 = -10 + Vo (3) + (4.9)(3 + t)^2

Without knowing the time of delay, this is as far as we can solve the problem; however, if we are to infer that t is approximately zero
44.1 = -10 + 3 Vo + (4.9)(3)^2
Vo = 3.33 m/s

Keeping Workers Anchored and Safe

Rock Climbing is an extremely risky sport. Climbing even small heights exposes the climber to the danger of falling, and even the smallest fall can cause significant injuries. However, Rock Climbing is still a popular sport.  This is because enthusiasts have made it as safe as possible for all climbers, regardless of skill level. Beginners are expected to tackle easy climbs, and are made to familiarize themselves with the use of safety equipment.

One of the key principles in Rock Climbing is the use of anchors. Anchors are used to support the safety systems that are used by climbers. They can be natural, such as boulders or trees, or an artificial one, such as a bolt, piton, nut or cams that will hold the safety system in place and help the climber to stop from falling.

The sport of Rock Climbing has made great contributions to the construction industry. Rock climbing’s safety equipment and procedures are applied in the construction of high rise buildings and structures to promote worker safety. For example, any structure that is being built that has risen considerably will always have anchors secured on roofs.  Safety lines are attached from these anchors to stop a worker from falling off a building in case of an accident.

As an integral part of a fall protection system in a construction setting, an anchor must be stable, whether designed as fixed or movable. It is designed in order not damage the safety system that it supports. Proper placement of multiple anchors is necessary to evenly distribute the load being carried.

Fall arrest roof anchors must be flexible enough to accommodate a number of attachment options. Furthermore, rain and moisture can cause corrosion on the roof anchors.  Rusted anchors could fail, since they are weak and brittle.  This is why most roof anchors are also designed to be corrosion resistant.

A fall protection system relies greatly on the integrity of its individual parts, so constant monitoring during use and inspection prior to use is very important.  Even a single damaged part can cause the entire system to fail.  However, if everything is working properly, roof anchors will be able to save the lives of high-rise construction workers everywhere.

About the Author

Visit www.safeguard-safety.com for details and information.

Climbing Tools: The Piton

Incoming search terms:

Be Sociable, Share!
Categories: Climbing Locations Tags: , , , , , , , , ,
  1. No comments yet.