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:

Fixed Incomes

Financial incomes that are set at a particular figure and do not fluctuate in the short term, such as bonds or pensions.

High Inflation

A period during which prices for goods and services rise excessively, eroding purchasing power.

Purchasing Power

The ability of an individual or group to buy goods and services, often considered in terms of the amount of goods and services that one unit of currency can buy.

Real Interest Rate

Adjusted interest rate for inflation, reflecting the true cost of borrowing or the real yield on savings.