A Rocket Moving in Outer Space Maintains a Constant Acceleration

question 13

Multiple Choice

A rocket moving in outer space maintains a constant acceleration (magnitude = 20 m/s²) while ejecting fuel at a speed of 15 km/s relative to the rocket. If the initial mass of the rocket is 3 000 kg, what is the magnitude of the thrust after 800 kg of fuel have been consumed?

• A) 56 kN
• B) 48 kN
• C) 52 kN
• D) 44 kN
• E) 36 kN

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Definitions:

Annual Interest Rate

The percentage increase in money per year, including compounding, that an investment or loan grows.

Decimal Places

The number of digits to the right of the decimal point in a decimal number, indicating its precision.

Compounded Daily

A method of calculating interest where the interest earned is added to the principal daily, resulting in earning interest on interest.

Effective Yield

A measure of the return on an investment, considering the compound interest rate.