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A 11.7 kg weather rocket generates a thrust of 200 N . The rocket, pointing upward,...

A 11.7 kg weather rocket generates a thrust of 200 N . The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 550 N/m , is anchored to the ground.

After the engine is ignited, what is the rocket's speed when the spring has stretched 38.0 cm ?

For comparison, what would be the rocket's speed after traveling this distance if it weren't attached to the spring?

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