Archive for the ‘Wheelchair Ramps’ Category
The Use of the Wheelchair Ramp as Loading Dock 7-7-06 2
April 16th, 2010 | 
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Little Rock Code Enforcement Officers Gary Thornton, Kobe TwoRivers, and Julian Baer demonstrate their preference for inclined planes versus steps. Who cares if the inclined plane is the Wheelchair Ramp at the Little Rock Tyler Street Alert Center((501)666-0916)?
Duration : 0:0:30
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What would you do with a wheelchair and a ramp to use less energy?
This was a physics question. Would the answer be to make the ramp longer? Do something to the wheels to create less friction? Something else?
Thanks for any input, I really appreciate it!
I think you may be right, I’ve talked to some others who also thought that making ramp longer seemed the right choice. THANKS!!!
you actually need friction, but you cant really reduce the amount of energy (if the object doesn’t slide back). because you need to move the same distance, you need the same amount of energy. to reduce the amount of POWER, you would need to increase the length of the ramp, in which you would would increase time, and because power is Work of time, you decrease the amount of power. this makes it easier, but longer to do it. to find work, you would have newtons times distance, and because you are using vertical distance, you would need to find the height of the ramp. lets say your Wheelchair is being pushed up a distance of 1 meter, your wheel chair is being pushed by 10 newtons. now you have a work of 10 joules, but you can make it easier than lifting it by making it spread out over time, so you can have a ramp that you take 10 seconds to traverse, so you would take 1 watt
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Duration : 0:0:31