A Light Rope Runs Through Two Frictionless Pulleys of Negligible

question 84

Multiple Choice

A light rope runs through two frictionless pulleys of negligible mass. A mass, m, is hung from one of the pulleys and a force, F, is applied to one end of the rope so that the mass moves at a constant speed. What is the force needed to move the mass at a constant speed?

• A) 0
• B) mg
• C) Mg
• D) 2mg
• E) 4mg

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Definitions:

Performance Goal

Goals oriented towards demonstrating competence and being judged favorably by others.

Drive

An innate, biologically determined urge to attain a goal or satisfy a need.

Worker Motivation

The set of internal and external factors that stimulate workers to take actions that lead to achieving work-related goals.

Set Point Theory

A theory suggesting that the body regulates its weight and energy balance through internal controls, maintaining a stable weight over time.