A 15-Kg Block Sliding on a Rough Horizontal Surface Is Attached

question 80

Multiple Choice

A 1.5-kg block sliding on a rough horizontal surface is attached to one end of a horizontal spring (k = 200 N/m) which has its other end fixed. If this system is displaced 20 cm horizontally from the equilibrium position and released from rest, the block first reaches the equilibrium position with a speed of 2.0 m/s. What is the coefficient of kinetic friction between the block and the horizontal surface on which it slides?

• A) 0.34
• B) 0.24
• C) 0.13
• D) 0.44
• E) 0.17

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Definitions:

Reality Principle

A psychoanalytic concept describing the process through which ego seeks to satisfy desire in realistic and socially appropriate ways, balancing the demands of the id and the super-ego.

Unconditional Positive Regard

A concept in humanistic psychology where an individual is accepted and loved as they are without conditions or judgment.

Conditions of Worth

Concepts in humanistic psychology referring to the stipulations set by individuals or society that dictate when people are worthy of respect or approval.

Self-Actualization

The actualization or achievement of an individual's skills and possibilities, viewed as a natural desire or necessity inherent in all people.