A 260-N Crate Starting at Rest Slides Down a Rough 4

question 70

Multiple Choice

A 26.0-N crate starting at rest slides down a rough 4.8-m-long ramp,inclined at 21.0° with the horizontal.18 J of energy is lost to friction.What will be the speed of the crate at the bottom of the incline?

• A)27.1 m/s
• B)5.81 m/s
• C)6.36 m/s
• D)4.49 m/s

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Definitions:

Extrapolation

To predict corresponding variables outside of the domain.

Regression Line

In statistics, a line that best fits a set of data points, reflecting the relationship between an independent variable and a dependent variable.

Correlation

An association between two variables.

Scatterplot

A type of graph in statistics used to display values for typically two variables for a set of data.