Straight Track
Straight Stair Lifts - an Affordable Option for Many
Most of the physically challenged people depend on chair lifts to travel up and down the stairs in their residences. Straight stair lifts are used in houses that do not have stairs with curves and bends. The external stairways through which a person enters the home from outside are more often straight stairways. The same is the case in majority of the offices. Therefore straight stair lifts are commonly used in houses and offices. Straight stair chair lifts which are power driven, travel along a straight track. Apart from carrying old and disabled people, these devices can also be used to carry heavy luggage from one floor to another without much effort. As many of the stairway lifts are provided with remote control facility, it is easy to move luggage between two floors.
Straight stair lifts are cheaper than other types of lifts. These can be easily installed and are more comfortable than other stairway lifts. The installation charges usually depend on the length of the track. As the length of the track used for a this type of stair chair lift is lesser than that required for curved stair chair lifts, installation of this type of stair chair lifts is cheaper. Besides, straight chair lifts require only minimum number of tracks. As wheelchair lifts on stairways, these stairlifts are the best and most economical choice. This wheelchair lift can be used for other purposes also. All these factors contribute to making straight stair lifts an affordable option for many people.
These kinds of stair chair lifts are more convenient than curved stair chair lifts to travel up and down the stairs. They provide quicker movement from one floor to another, compared to curved chair lifts. Moreover, these can be easily relocated to new locations. Straight chair lifts are relatively more compact than curved chair lifts. They can be easily folded and kept aside when not in use. This enables other people to use the stairways comfortably.
Straight stair lifts which are manufactured by branded companies have a life of about 20 years if used properly. Bruno, ThyssenKrupp Access, Savaria Concord are some world famous brands that provide different models of straight as well as curved stairlifts with various features at affordable rates.
About the Author
DAY provides indoor and outdoor accessibility solutions ranging from dumbwaiters to wheelchair lifts. The straight stair lifts available at DAY Elevator & Lift are the practical solutions for individuals who have a hard time climbing stairs.
Straight Track
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You are on a train that is traveling at 3.0m/s along a level straight track. Very near and parallel to the tra
track* is a wall that slopes upward at a 12 degress angle with the horizontal. As you face the window (o.9m high, 2.0m wide) in your compartment, the train is moving to the left, as the rawing indicates. The top edge of the wall appears at window corner. The top edge of the wall first appears at a window corner A and eventually disappears at window corner B. How much time passes betwen appearance and disapppearance of the upper edge of the wall?
Without the drawing that is obviously required to be sure, I'll assume that there is no distance between the wall and the window, so what you see relative to the window is actually the height change of the wall. The first corner is the forward bottom corner and the last one is the rearward top corner. The vertical height change
deltaH = 0.9 + 2.0*tan(theta)
The horizontal distance traveled
x = deltaH/tan(theta)
The time taken
t = x/v