A High-Speed Dart Is Shot from Ground Level with a Speed

question 18

Multiple Choice

A high-speed dart is shot from ground level with a speed of 150 m/s at an angle 30° above the horizontal.What is the vertical component of its velocity after 4.0 s if air resistance is neglected?

• A)150 m/s
• B)36 m/s
• C)130 m/s
• D)75 m/s
• E)38 m/s

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Definitions:

Productivity

A measure of the efficiency of production, often expressed as the ratio of outputs to inputs in a production process.

Per Unit

A measurement specific to one unit of a good or service, indicating cost, price, or quantity related to a single unit.

Output

The total amount of goods or services produced by a company or country.

Input

Resources used in the production process, including labor, raw materials, and capital.