Equilibrium: a Child Is Trying to Stack Two Uniform Wooden

question 76

Multiple Choice

Equilibrium: A child is trying to stack two uniform wooden blocks, 12 cm in length, so they will protrude as much as possible over the edge of a table, without tipping over, as shown in the figure. What is the maximum possible overhang distance d?

• A) 5 cm
• B) 6 cm
• C) 7 cm
• D) 8 cm
• E) 9 cm

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Definitions:

Sample size

The number of observations or data points collected from a population for a study.

Confidence interval

A set of values obtained from sample data which probably encompasses the value of an unspecified population parameter.

Average hourly income

The mean income earned by an individual per hour of work.

Standard deviation

A metric that calculates the degree of spread or variability within a data set.