A 20-Kg Object Moving 3

question 75

Multiple Choice

A 2.0-kg object moving 3.0 m/s strikes a 1.0-kg object initially at rest. Immediately after the collision, the 2.0-kg object has a velocity of 1.5 m/s directed 30° from its initial direction of motion. What is the x component of the velocity of the 1.0-kg object just after the collision?

• A) 3.7 m/s
• B) 3.4 m/s
• C) 1.5 m/s
• D) 2.4 m/s
• E) 4.1 m/s

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Definitions:

Derived Demand

Demand for a factor of production or intermediate good that occurs as a result of the demand for another related final good or service.

MRP = MRC Rule

The principle that to maximize profit (or minimize losses), a firm should employ the quantity of a resource at which its marginal revenue product (MRP) is equal to its marginal resource cost (MRC), the latter being the wage rate in a purely competitive labor market.

Marginal Productivity

The additional output generated by employing one more unit of a specific factor of production while holding other factors constant.

Professional Soccer Players

Athletes who are paid to play soccer as their main occupation, often participating in national and international leagues.