A 20-Kg Mass Is Projected from the Edge of the Top

question 3

Multiple Choice

A 2.0-kg mass is projected from the edge of the top of a 20-m tall building with a velocity of 24 m/s at some unknown angle above the horizontal. Disregard air resistance and assume the ground is level. What is the kinetic energy of the mass just before it strikes the ground?

• A) 0.18 kJ
• B) 0.97 kJ
• C) 0.89 kJ
• D) 0.26 kJ
• E) 0.40 kJ

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Definitions:

Marginal Product

The increase in output that arises from an additional unit of input, holding all other inputs constant.

Labor

The human effort, both physical and mental, used in the production of goods and services.

Average Variable Cost

The variable cost per unit of output, calculated by dividing total variable costs by the quantity of output.

Cost Of Production

The total expense incurred in manufacturing a product or providing a service, including raw materials, labor, and overhead costs.