A 70-Kg Object Is Acted on by Two Forces

question 60

Multiple Choice

A 7.0-kg object is acted on by two forces. One of the forces is 10.0 N acting toward the east. Which of the following forces is the other force if the acceleration of the object is 1.0 m/ s² toward the east?

• A)6.0 N east
• B)3.0 N west
• C)12.0 N east
• D)9.0 N west
• E)7.0 N west

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Definitions:

Standard Error

The standard deviation of the sampling distribution of a statistic, most commonly the mean, reflecting the variability of an estimate from sample to sample.

Estimate

An approximate calculation or judgment of the value, number, quantity, or extent of something.

Coefficient of Determination

A statistical measure, often denoted as R², that represents the proportion of the variance in the dependent variable that is predictable from the independent variable(s).

Coefficient of Correlation

A numerical metric that determines the intensity and course of a straight-line association between two variables that can be quantified.