Re: High IMA Pulley Task
Posted: December 9th, 2017, 11:11 am
https://docs.google.com/drawings/d/1SAP ... sp=sharing
Is this an IMA of 3 or an IMA of 1 or of _______?
Is this an IMA of 3 or an IMA of 1 or of _______?
It's an IMA of 1. If the load was also attached to the movable pulley, it would be an IMA of 3 (assuming I remember how to do this correctly).Ashernoel wrote:https://docs.google.com/drawings/d/1SAP ... sp=sharing
Is this an IMA of 3 or an IMA of 1 or of _______?
Alright that makes sense thxUnome wrote:It's an IMA of 1. If the load was also attached to the movable pulley, it would be an IMA of 3 (assuming I remember how to do this correctly).Ashernoel wrote:https://docs.google.com/drawings/d/1SAP ... sp=sharing
Is this an IMA of 3 or an IMA of 1 or of _______?
I would recommend against it. I've known teams to be penalized for lead that was completely enclosed in the past.PM2017 wrote:Is it ok to use lead beads like these (https://www.rotometals.com/pure-lead-nu ... gIHt_D_BwE) for weights, as long as they are entirely enclosed?
We used rolls of penniesPM2017 wrote:Is it ok to use lead beads like these (https://www.rotometals.com/pure-lead-nu ... gIHt_D_BwE) for weights, as long as they are entirely enclosed?
You could also borrow a 500g mass from your physics departmentftf841 wrote:We used rolls of penniesPM2017 wrote:Is it ok to use lead beads like these (https://www.rotometals.com/pure-lead-nu ... gIHt_D_BwE) for weights, as long as they are entirely enclosed?
Use a motor or have a 7:1 gear system so that a weight only needs to fall 10 cm to lift up the other 10 cm. You could make the heavier weight only slightly heavier and use this as a mechanical timer.oofboy69 wrote:Okay so I just realized that since the IMA is 7, it would require a weight to fall 70cm to lift something 10cm. The maximum height of the device is 60cm, so how am I going to pull the pulley up 10cm?