A 30-Kg Crate Rests at the Bottom of a Plane Inclined

question 9

Multiple Choice

A 3.0-kg crate rests at the bottom of a plane inclined at an angle of 15.0 ^$\circ$ above the horizontal.The crate is given a push up the plane and when it has travelled a distance of 2.0 m up the plane its speed is 3.0 m/s.How much work is done on the crate by gravity?

• A)-15 J
• B)-60 J
• C)-30 J
• D)-45 J
• E)-10 J

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Definitions:

Fallacy

A faulty argument that at first appears to be correct.

Good Argument

A logical and coherent set of statements leading from premises to a conclusion, effectively supported by evidence.

Informal Fallacies

Errors in reasoning that do not involve the logical structure of an argument but are related to the content of the argument or the way the argument is presented.

Winning

Achieving victory in a competition or contest.