# Need Help with Rotational & Transitional Equilibrium LA

I need some help with physics...Honestly, I'm a bit slow in the class and it's killing my GPA

How do I calculate torque and normal force?

I'm working on a lab. Basically, I'm balancing a meter stick with two different mass on both sides sides with a fulcrum in between them. I need to determine the normal force and torque.

Given:
Measured mass of meter stick: .09495 kg
Location of meter stick's center of mass: 50.5m

Trial 1:
Left of Fulcrum
mass1 [kg]: .250kg
F1:?
Length 1[m]: .150m
Torque1=Force1(Length1) [Nm]:?

Right of Fulcrum
mass2 [kg]: 100kg
F2:?
Length2 [m]: .37m
Torque2= Force2(Length 2)

Trial 2:
Left of Fulcrum...
mass1 [kg]: .300kg
F1:?
Length 1[m]: .150m
Torque1=Force2(Length2):?[Nm]

Right of Fulcrum...
mass2 [kg]: 100kg
F2:?
Length2 [m]: .445m
Torque2= Force2(Length 2):? [Nm]

Btw...is normal Force= Force of gravity in this case? and when isn't normal force equal to force of gravity?

Thank You
Mahdi Chowdhury (11th grade Regular Physics)

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