If the Displacement of an Object Is Given in SI

question 45

Multiple Choice

If the displacement of an object is given in SI units by Δx = −3t + 4t ²,at t = 2 s its velocity and acceleration are,respectively:

• A)positive,positive.
• B)positive,negative.
• C)negative,negative.
• D)negative,positive.

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Definitions:

Structuralism

An approach in psychology that analyzes the basic elements of thoughts and sensations to understand the structure of the mind.

Sensation and Perception

The processes by which sensory information is received and interpreted by the brain to understand the environment.

Functionalism

A psychological theory that emphasizes the role of mental processes in how people adapt to their environment.

Gestalt Psychology

A theory of mind and brain positing that the operational principle of the brain is holistic, parallel, and analog, with self-organizing tendencies.