A 30-N Box Is Pulled Upward 6

question 5

Multiple Choice

A 30-N box is pulled upward 6.0 m along the surface of a ramp that rises at 37° above the horizontal.How much work does gravity do on the box during this process?

• A)-1100 J
• B)-110 J
• C)-140 J
• D)-180 J
• E)120 J

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Definitions:

Adhesion

The force that holds molecules of different substances together, important in various biological and physical processes.

Cohesion

The action or property of like molecules sticking together, being mutually attractive.

Cohesion

The action or property of molecules of the same substance sticking together, playing a critical role in the movement of water in plants.

Adhesion

Adhesion refers to the process or condition in which different substances or surfaces stick together, often involving proteins that bind cells to each other or to extracellular matrices.