A Toy Rocket with a Mass of 300 G Takes

question 11

Multiple Choice

A toy rocket with a mass of 300 g takes off in a vertical direction under the influence of gravity. It burns fuel at the rate of 25 g/s. The exhaust speed of the gases is 80 m/s. What is the speed of the rocket at the end of 10 seconds?

• A)145 m/s
• B)480 m/s
• C)40 m/s
• D)0 m/s
• E)382 m/s

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Definitions:

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