A Mass M = 2

question 54

Multiple Choice

A mass m = 2.5 kg is sliding along a frictionless table with initial speed v as shown in the figure. It strikes a coiled spring that has a force constant k = 500 N/m and compresses it a distance x₂ - x₁ = -5.0 cm. The initial speed v of the block was

• A) 0.71 m/s
• B) 1.0 m/s
• C) 1.4 m/s
• D) 0.50 m/s
• E) 1.7 m/s

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Definitions:

Nature

The phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth.

Nurture

The influence of external factors after conception, e.g., the product of exposure, experience, and learning on an individual.

Instinct

An ingrained behavior observed in animals that consistently occurs in reaction to designated stimuli.

Drive-Reduction Theory

A psychological theory suggesting that motivation arises from biological needs driving an individual to act in ways that reduce drives and achieve homeostasis.