A Very Light Cart Holding a 300-N Box Is Moved

question 69

Multiple Choice

A very light cart holding a 300-N box is moved at constant velocity across a 15-m level surface.What is the net work done in the process?

• A)zero
• B)1/20 J
• C)20 J
• D)2 000 J

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Definitions:

Median

The middle value in a data set when the values are arranged in ascending or descending order.

Range

The simplest measure of variability is the range, which is calculated by subtracting the lowest score from the highest score and adding 1.

Normal Curve

A symmetrical bell-shaped curve representing a normal distribution in statistics, where the mean, median, and mode are equal.

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data values from the mean.