If several weights are hung on a horizontal bar, what condition must exists so that the bar will stay in place?

to the people who answering my questions.. THANK YOU VERY MUCH:D !!|||all these weights hung will be parallel forces acting at different points of the bar, so that for the bar to be in equilibrium (as you say stay in place)


two conditions must be satisfied.


1) the sum of upward forces must be equal to the sum of downward forces





2)the sum of clockwise moments of forces should be equal to the sum of anticlockwise moments of forces.


when first condition is satisfied, the bar will be in translational equilibrium and when the second condition is satisfied, it will be in totational equilibrium. for both conditions satisfied it will be in perfect equilibrium.