A System of Blocks and a Frictionless Pulley Is Shown

question 76

Multiple Choice

A system of blocks and a frictionless pulley is shown in the figure. Block A has a mass of 2.0 kg and is on a rough horizontal surface for which μ_s = 0.40 between the surface and block A. The rope pulls horizontally on block A. Block C has a mass of 1.0 kg. An external force P = 23.0 N, applied vertically to block A, maintains the system at rest as shown in the figure. What is the friction force on block A?

• A) 6.3 N
• B) 6.9 N
• C) 7.5 N
• D) 5.7 N
• E) 5.1 N

---

Definitions:

Tariffs

Taxes imposed by a government on imported or exported goods to regulate trade, protect domestic industries, or generate revenue.

Privatization

The process of transferring ownership or operation of a business, enterprise, agency, or public service from the public sector (government) to private individuals or organizations.

Globalization

The process of interaction and integration among people, companies, and governments worldwide, resulting in the interconnectedness of global economies, cultures, and populations.

International Policy

Policies designed to handle issues that cross national borders and require cooperation or negotiation between countries.