If the Displacement of an Object Is Given in SI

question 4

Multiple Choice

If the displacement of an object is given in SI units by Δx = −5t + t ²,at t = 2 s its velocity and acceleration are,respectively: (Hint: Use dimensional analysis along with the equations for motion with constant acceleration. )

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

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Definitions:

Mean Level Change

Mean level change refers to the statistical concept of a change in the average value of a variable over time or through conditions within a given population.

Cross-Situational Consistency

The concept that an individual's behavior remains consistent across different situations and contexts.

Narrative Identity Development

The formation of an individual's identity through the construction of a personal narrative that integrates past experiences into a cohesive story aligning with the self.

Dan McAdams

An American psychologist known for his work in personality psychology, specifically his theory on narrative identity and life stories.