For a Body to Be Equilibrium Under the Combined Action

question 44

Multiple Choice

For a body to be equilibrium under the combined action of several forces:

• A)all the forces must be applied at the same point
• B)all of the forces are composed of pairs of equal and opposite forces
• C)the sum of the components of all the forces in any direction must equal zero
• D)any two of these forces must be balanced by a third force
• E)the lines of action of all the forces must pass through the center of gravity of the body

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Definitions:

Experimental Group

In research, a group of subjects who are exposed to the variable under investigation, as opposed to the control group which is not.

Comparisons

The act of evaluating two or more items to highlight their similarities and differences.

Deception

The extent to which the participants in a research project are unaware of the project or its goals.

Reactivity

The tendency of people and events to react to the process of being studied.