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 I: Find the stone's speed just as it left the ground?
Part II: Find its maximum height?
Please show all work and steps to determine the stone's speed just as it left the ground.