What is the speed of a ball released at the bottom of a vertical circular path?

AI Thread Summary
The discussion centers on calculating the speed of a ball released at the bottom of a vertical circular path, given its mass, radius, and the force exerted by the pitcher. The initial kinetic energy and potential energy equations are referenced to determine the final speed upon release. The force exerted by the pitcher is parallel to the motion, which affects the ball's speed. Clarification is sought on the application of the work-energy principle in this context. Understanding these principles is crucial for accurately solving the problem.
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Homework Statement


A pitcher rotates a 2kg ball around a verticle circular path of radius 1.2m. he exerts a 50N force directed parallel to the motion of the ball around the completer circular path. The speed of the ball at the top of the circle is 20m/s. If the ball is released at the bottom of the circle, what is the speed upon release?


Homework Equations


KEi+PEi = KEf+PEf


The Attempt at a Solution


wd = Fd
 
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Can you explain what you wrote under "3. The Attempt at a Solution ".
What does that formula give you? Why is it useful?
 

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Thread 'A cylinder connected to a hanging mass'

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