A Packing Crate Rests on a Horizontal Surface

question 89

Multiple Choice

A packing crate rests on a horizontal surface.It is acted on by three horizontal forces: 600 N to the left,200 N to the right,and friction.The weight of the crate is 400 N.If the 600-N force is removed,the resultant force acting on the crate is

• A) zero.
• B) 200 N to the right.
• C) 200 N to the left.
• D) 400 N to the left.
• E) impossible to determine from the information given.

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Definitions:

Correlation

A measure of the relationship between two variables, indicating how changes in one variable are associated with changes in another.

Friedman Two-way ANOVA

A nonparametric statistical test used to detect differences in treatments across multiple test attempts.

Wilcoxon Rank Test

A non-parametric test used to compare two paired groups to determine whether their population mean ranks differ.

Independent Samples

Groups of data in which the members of one group are not related or matched to the members of the other group(s).