Find velocity given y and angle

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Homework Help Overview

The problem involves Tarzan swinging on a vine, with the goal of determining his speed at the bottom of the swing under two different initial conditions. The context includes concepts from mechanics, specifically energy conservation and forces acting on a swinging object.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants discuss using conservation of energy, drawing free-body diagrams, and applying Newton's Second Law. There are questions about the role of the angle in calculations and the correct interpretation of height changes. Some participants suggest different methods for calculating velocity, while others express confusion about the initial conditions and the mass of Tarzan.

Discussion Status

There is ongoing exploration of different approaches to the problem, with some participants providing guidance on using energy conservation principles. Multiple interpretations of the setup and calculations are being discussed, but no consensus has been reached on the final answers.

Contextual Notes

Participants note the importance of accurately determining the change in height based on the angle of the vine and the initial position of Tarzan. There is also mention of constraints related to homework rules and the need for careful consideration of the problem's parameters.

  • #31
Hello Mandy,

You may use law of conservation of energy to find the velocity at the bottom.

(delta) h= 34-34cos38

so you canget v=11.88 ms-1 if g= 9.8 ms-2
 
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  • #32
inky said:
Hello Mandy,

You may use law of conservation of energy to find the velocity at the bottom.

(delta) h= 34-34cos38

so you canget v=11.88 ms-1 if g= 9.8 ms-2

scroll up


This is a resolved question btw.. so you guys can close it.
 

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