I'm planning on building a small ski lift for my kids. It's been 20 years since I've taken a physics class so I'm lucky to remember what gravity is.(adsbygoogle = window.adsbygoogle || []).push({});

Here's a poor image of the hill. I would like to know the following:

A) how much lbs of tension is against the lift wire?

B) how heavy should the counter weights (D&E) be so they don't rip out of the ground?

Facts and Assumptions

C) distance between towers A&B and B&C are 200' each

D) Elevation between towers A&B is 60', B&C is 40'

E) Would like to be able to lift a total of 4 people at a time...assume 175 lbs/person

F) Not as important...lift wire weight is 300 lbs total

Feel free to assume anything else that's missing. I'm basically looking for some formulas I can use to play with the numbers.

http://www.walchem.com/email/movies/lift.jpg [Broken]

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# Homework Help: Ski Lift

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