A Block with a Mass of 10 Kg Is at Rest

question 62

Multiple Choice

A block with a mass of 10 kg is at rest on a horizontal surface.The coefficient of static friction between the block and the surface is 0.30,and the coefficient of kinetic friction is 0.25.A force of 20 N acts on the block toward the left.The magnitude of the frictional force on the block is

• A)10 N
• B)20 N
• C)0.10 kN
• D)30 N
• E)3.0 N

---

Definitions:

Effective Communication

The exchange of information or ideas in a manner that is clear, concise, and understood by all involved parties.

Double-Checking

The act of verifying or reviewing information, work, or details a second time to ensure accuracy or correctness.

Conversational Ritual

Patterns or practices followed during communication that serve to establish or maintain social bonds.

Rapport Talk

Talk focused on sharing information about relationships.