Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Physics
Classical Physics
Mechanics
Calculating actual weight lifted on a pulley weight machine
Reply to thread
Message
[QUOTE="ForecasterJason, post: 6036324, member: 602788"] Sorry, I think it's just that I have a hard time with physics. I attempted an engineering physics class in college and ended up dropping it. I think I have enough of an understanding to figure out exactly how much weight is being lifted by the person. I did some more reading and it looks like I need to figure out what distance the weights are moving vs how far my hands/feet move for a given exercise. EDIT: I think I have now solved this. I got measurements done for the chest press and the weights moved 18 inches while the bar moved 15 inches. So that's a ratio of 5/6, so from my understanding that means it took 108 lbs to move the 90 lb weight. Based on the total resistance required, I can see that this works out to a 2:1 mechanical advantage with how they designed the pulley system. Thanks again for the help. [/QUOTE]
Insert quotes…
Post reply
Forums
Physics
Classical Physics
Mechanics
Calculating actual weight lifted on a pulley weight machine
Back
Top