An 80-Kg Man Is Skating Northward and Happens to Suddenly

question 97

Short Answer

An 80-kg man is skating northward and happens to suddenly collide with a 20-kg boy who is ice skating toward the east. Immediately after the collision, the man and boy are seen to be moving together at 2.5 m/s in a direction 60° north of east. How fast was the boy moving just before the collision?

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Definitions:

Exchange

The act of trading goods, services, currencies, or other commodities between parties.

Self-interest

The pursuit of personal advantages and well-being, often guiding individual economic decisions.

Division of Labor

A method that breaks down the production of a product into a series of specific tasks, each performed by a different worker.

Specialization

The concentration of the productive efforts of individuals or organizations on a limited number of activities, leading to increased efficiency and productivity.