A Model Rocket with a Mass of 500 Grams Is

question 66

Multiple Choice

A model rocket with a mass of 500 grams is launched straight up. It achieves a speed of 20.0 m/s in 2.00 seconds. Ignoring any change in mass of the rocket due to expelled fuel, and neglecting air resistance, the average thrust force of the engines on the rocket is

• A) 7.50 N.
• B) 9.90 N.
• C) 12.0 N.
• D) 13.5 N.
• E) 20.0 N

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Operating Profit

Revenue obtained through a company's principal business activities, before subtracting interest and taxes.

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The amount of money required to purchase something or to produce a good or service.