You throw a 20-n rock vertically into the air from ground


Solve the all parts of following question:

Question: You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 15.2m above the ground, it is traveling at a speed of 24.7m/s upward.

Part A: Use the work-energy theorem to find its speed just as it left the ground.

Part B: Use the work-energy theorem to find its maximum height.

I need help to find its speed just as it left the ground.

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Physics: You throw a 20-n rock vertically into the air from ground
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