An 80-N Crate Slides with Constant Speed a Distance of 5.0

question 37

Multiple Choice

An 80-N crate slides with constant speed a distance of 5.0 m downward along a rough slope that makes an angle of 30° with the horizontal.The work done by the force of gravity is:

• A)-400 J
• B)-200 J
• C)-69 J
• D)200 J
• E)400 J

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Definitions:

Manual Transmission

A type of gearbox used in vehicles, allowing the driver to manually select and change gear ratios.

Automatic Transmission

A type of vehicle transmission that automatically changes gear ratios as the vehicle moves, freeing the driver from having to shift gears manually.

Operant Conditioning

A method of learning that occurs through rewards and punishments for behavior, through which an individual makes associations between certain behaviors and their consequences.

Table Clearing

The process of removing dishes, utensils, and leftovers from a table after a meal.