Maximum speed for pendulum problem

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Homework Help Overview

The problem involves a pendulum with a specified length and height from which it is raised, seeking to determine the maximum speed at the lowest point of its swing. The subject area pertains to mechanics, specifically energy conservation principles in pendulum motion.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the application of conservation of energy principles, questioning the initial conditions and the setup of the problem. There is also a focus on clarifying the pendulum's length and height, with some participants suggesting the use of kinetic and potential energy equations.

Discussion Status

The discussion is ongoing, with some participants offering guidance on energy concepts and equations. There is an exploration of different interpretations of the problem setup, particularly regarding the pendulum's dimensions.

Contextual Notes

Participants have noted potential typos in the original problem statement regarding the pendulum's length. The discussion reflects uncertainty about the initial conditions and the correct application of energy equations.

soulja101
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Homework Statement


A pendulum of length 1.0cm is raised 15cm. What is the maxium speed it can reach the bottom.


Homework Equations


I have no clue. All i know is that v1 is zero.


The Attempt at a Solution


i need help to get started
 
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I am having trouble understanding the situation. How do you raise a 1cm pendulum 15cm? Please check your post for typos.. could it be a 1m pendulum?
 
pendulum

the pendulum length is 1.0m
my bad
 
Maybe conservation of energy? Kinetic and potential?
 
energy is correct. good.
So because of the way they wrote the queston, it's very easy.
:)
 
At equilibrium (i.e. the bottom in this question), all the potential energy has been converted to kinetic energy.
 
do i use the Ek=mv2
 
That is not the kinetic energy equation. E = \frac{1}{2} mv^2
 

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