A 40-N Crate Is Pulled Up a 4-M Inclined Plane

question 29

Multiple Choice

A 40-N crate is pulled up a 4-m inclined plane by a worker at constant velocity.If the plane is inclined at an angle of 37° to the horizontal and there exists a constant frictional force of 10 N between the crate and the surface,what is the force applied by the worker?

• A) zero
• B) 14 N
• C) 24 N
• D) 34 N
• E) ​136 N

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Definitions:

Leukemia

A cancer of the blood and bone marrow, defined by the overabundance of irregular white blood cells.

Singular

Referring to a single unit or individual element, as opposed to multiple items or a group.

Plural

A word variation that signifies a quantity greater than one.

Nephrology

A branch of medicine concerned with the study, diagnosis, and treatment of kidney diseases.