A Child Pulls on a Wagon with a Force of ${~N}$

question 132

Multiple Choice

A child pulls on a wagon with a force of 75 ${~N}$ If the wagon moves a total of $42 \mathrm {~m}$ in $3.1 \mathrm {~min} \text {, }$ what is the average power delivered by the child?

• A) 17 W
• B) 21 W
• C) 22 W
• D) 26 W

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Definitions:

Operational Definition

A specific, clear, and measurable definition of a concept or variable for the purposes of scientific study.

Conceptual Variable

Abstract elements that represent parts of theories and are not directly observable but are measurable through operational definitions.

Measuring

The action of determining the size, amount, or degree of something using standard units or instruments.

Correlational Design

A type of research methodology that examines the relationship between two or more variables without manipulating them to determine cause and effect.