A Professor Holds an Eraser Against a Vertical Chalkboard by Pushing

question 39

Multiple Choice

A professor holds an eraser against a vertical chalkboard by pushing horizontally on it.She pushes with a force that is much greater than is required to hold the eraser.The force of friction exerted by the board on the eraser increases if she:

• A)pushes with slightly greater force
• B)pushes with slightly less force
• C)stops pushing
• D)pushes so her force is slightly downward but has the same magnitude
• E)pushes so her force is slightly upward but has the same magnitude

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Definitions:

Seizes

To take hold of suddenly and forcibly; in a legal context, it can mean to take legal possession of something.

Rental Agreement

A contract between a landlord and tenant that outlines the terms and conditions of the property rental.

Duty

A moral or legal obligation to ensure the well-being or safety of others, or to adhere to a standard of conduct.

Careful

Careful describes the act of being cautious, meticulous, or taking pains to avoid mistakes or accidents in one's actions or decisions.