A rod rests on frictionless ice.Forces that are equal in magnitude and opposite in direction are simultaneously applied to its ends as shown.The quantity that has a magnitude of zero is its: 
Definitions:
Qualify
To qualify means to meet the established criteria or conditions required for a certain status, activity, or benefit.
Tax Liability
The cumulative taxes that must be paid to a taxing authority by an individual, corporation, or other legal entity.
Married Couple
Married Couple refers to two individuals who are legally married to each other and are recognized as a married pair for legal and tax purposes.
Taxable Income
The portion of an individual’s or entity's gross income that is subject to taxes, after accounting for deductions and exemptions.
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