Is Zero Torque on a Pivot Point Indicative of Zero Force?

[Sinister]

Homework Statement

if the torque on a pivot point is zero does that mean the force acting on it is zero aswell?

Homework Equations

F = mg and T = F x D

The Attempt at a Solution

The sum of the torques in this lab that I'm doing isn't equaling zero... is this normal due to error?
I think it has something to do with the pivot point and the torques

 

[rock.freak667]

Homework Equations

F = mg and T = F x D

T=FD, so either F=0 or D=0. Most times, the distance of the force from the pivot is 0 i.e. the force is directly on the pivot.

 

[Sinister]

ok but for the lab its asking us to measure the force along the pivot point using a scale... and we got a number so how does this affect the torque?

 

[rock.freak667]

ok but for the lab its asking us to measure the force along the pivot point using a scale... and we got a number so how does this affect the torque?

Well right, you might get a value for the force, but if the distance from the pivot is zero, then the torque is zero.

If the distance from the force is small, you will get a small value for the torque as well.