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Physics
Classical Physics
Mechanics
Calculating actual weight lifted on a pulley weight machine
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[QUOTE="ForecasterJason, post: 6035810, member: 602788"] Hi, I have a pin-loaded pulley weight home gym machine. There are 9 weight plates that are 10 lbs each, so for each exercise the maximum weight that can be done is 90 lbs. However, there is a chart in the manual that shows the weight resistance for various exercises based on how many plates are used. For most exercises, the resistance is listed as being substantially more than the weight lifted based simply on the plates. I'm trying to understand if there is any way to calculate what would be more of a true weight that is being lifted, and I thought this seemed like a physics matter. In other words, would it be closer to the weight lifted from the plates, or from what the resistance chart shows? What confuses me is that (for example), with all 9 plates being used, the chest press is listed as being 215 lbs of resistance. It feels like more than 90 lbs to me, but not quite 215. But yet, the leg press is listed as 275 lbs of resistance for 9 plates. From my experience with using a pin loaded leg press at another gym, what I have on my machine seems like 90 lbs to me. I can provide images of the machine if that would help. Thanks [/QUOTE]
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Physics
Classical Physics
Mechanics
Calculating actual weight lifted on a pulley weight machine
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