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Solve the all parts of following question given below:

Question: You throw a 12-N stone vertically into the air from ground level. You observe that when it is 15.0 m above the ground, it is traveling at 25.0 m/s upward. Use the work -energy theorem to find

Part A: Find the stone's speed just as it left the ground?

Part B: Find its maximum height?

I need help to determine find the stone's speed just as it left the ground.

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