Three Objects Are Connected by Massless Wires Over a Massless

question 92

Multiple Choice

Three objects are connected by massless wires over a massless frictionless pulley as shown in the figure. The tension in the wire connecting the 10.0-kg and 15.0-kg objects is measured to be 133 N. What is the tension in wire A?

• A) 87.5 N
• B) 245 N
• C) 280 N
• D) 333 N
• E) 517 N

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Definitions:

Universal Instantiation

A logical rule stating that if something is true for everything in a certain set, then it is true for any specific thing in that set.

Universal Instantiation

A logical rule of inference that allows the derivation of a particular instance from a general statement, often used in formal proofs.

Universal Generalization

A logical rule that states if something is true for all members of a class, it is true in general.

Quantifier Negation

A logical operation that reverses the scope of a quantifier in a statement, changing its overall truth value.