How Do Forces Determine the Balance of a Supported Ruler?

AI Thread Summary
To determine the forces acting on a supported ruler, the total downward forces include the ruler's weight of 0.75N and an additional weight of 1.00N, totaling 1.75N. The supports exert upward forces to counterbalance this total downward force. To find the individual forces at each support, moments or torques about one of the supports should be calculated. This involves analyzing the distances from the weights to the pivot point to establish equilibrium. Understanding these principles is crucial for solving the problem effectively.
Miri
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Homework Statement


A ruler of 0.75N and 52.0cm is supported 1.0cm from each of its two ends. A weight of 1.00N is placed 16.0cm from the left end of the ruler. Determine the forces acting upon the ruler at the two supports.


Homework Equations


I know that the two forces of the supports are pointing upward and 1.00N is pointing downward as well as 0.75N. So I know that the two forces of the supports together are 1.75N. But I don't know what to do now.
 
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Miri said:

Homework Statement


A ruler of 0.75N and 52.0cm is supported 1.0cm from each of its two ends. A weight of 1.00N is placed 16.0cm from the left end of the ruler. Determine the forces acting upon the ruler at the two supports.

Homework Equations


I know that the two forces of the supports are pointing upward and 1.00N is pointing downward as well as 0.75N. So I know that the two forces of the supports together are 1.75N. But I don't know what to do now.
HINT: Consider the moments (or torques) about one of the pivots.
 

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