Problem: A rocket is launched straight up from the earth's surface at a speed of 1.80×104 m/s. What is its speed when it is very far away from the earth? Ignore air resistance.

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Conservation of mechanical energy:

Ki+Ui+WNC=Kf+Uf

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Problem Details

A rocket is launched straight up from the earth's surface at a speed of 1.80×104 m/s. What is its speed when it is very far away from the earth? Ignore air resistance.

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What scientific concept do you need to know in order to solve this problem?

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