- #1
bananan
- 176
- 0
Hi physics fans,
I've made four diagrams for inclusion in a physics lab report. They depict situations in which a meter stick is in static equilibrium (no net torque, no net force). My professor mentioned to me that my analysis of the forces on the stick is not correct, but was not more specific than that.
Can you take a look at my diagrams and help me figure out where my error is? Do I need to show a force vector pointing towards the Earth for each weight attached to the meter stick? I thought it was correct to consolidate all of them into one (since the center of mass of the system has to be over the pivot point for static equilibrium to exist) Links to my diagrams are below:
http://img325.imageshack.us/img325/9105/physlab8apparatus1sn5.th.png
http://img261.imageshack.us/img261/3782/physlab8apparatus2fk8.th.png
I've made four diagrams for inclusion in a physics lab report. They depict situations in which a meter stick is in static equilibrium (no net torque, no net force). My professor mentioned to me that my analysis of the forces on the stick is not correct, but was not more specific than that.
Can you take a look at my diagrams and help me figure out where my error is? Do I need to show a force vector pointing towards the Earth for each weight attached to the meter stick? I thought it was correct to consolidate all of them into one (since the center of mass of the system has to be over the pivot point for static equilibrium to exist) Links to my diagrams are below:
http://img325.imageshack.us/img325/9105/physlab8apparatus1sn5.th.png
http://img261.imageshack.us/img261/3782/physlab8apparatus2fk8.th.png
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