A 10-Kg Object Is Dropped from Rest

question 9

Multiple Choice

A 10-kg object is dropped from rest.After falling a distance of 50 m,it has a speed of 26 m/s.What is the change in mechanical energy caused by the dissipative (air) resistive force on the object during this descent?

• A)-1.3 kJ
• B)-1.5 kJ
• C)-1.8 kJ
• D)-2.0 kJ
• E)-2.3 kJ

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Definitions:

Homeostasis

The tendency of a biological system to maintain stability while adjusting to conditions that are optimal for survival.

Systems Perspective

An approach that views problems and solutions holistically, considering the interconnections and interactions among components within a system.

Equifinality

A principle in systems theory suggesting that a final state can be reached from different initial conditions and through different pathways.

Negative Entropy

A concept in systems theory, indicating systems' tendency towards organization and complexity, contrasting with the concept of entropy in thermodynamics.