A Brick Is Resting on a Rough Incline as Shown

question 20

Multiple Choice

A brick is resting on a rough incline as shown in the figure. The friction force acting on the brick, along the incline, is

• A) zero.
• B) equal to the weight of the brick.
• C) greater than the weight of the brick.
• D) less than the weight of the brick.

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Definitions:

Hypotheses

Hypotheses are proposed explanations made on the basis of limited evidence as starting points for further investigation.

Standard Error

The standard deviation of the sampling distribution of a statistic, most commonly of the mean.

Means

Refers to arithmetic averages derived from a set of numerical data, indicating typical or central values.

Standard Deviations

Standard deviations measure the amount of variability or dispersion from the average in a set of data.