Can You Set a Swing Going with 33 ft/s?

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Homework Help Overview

The discussion revolves around the feasibility of setting a swing in motion with an initial velocity of 33 ft/s, specifically considering a child weighing 66 pounds. Participants are exploring the physical implications of such a scenario.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants are questioning the possibility of achieving a velocity of 33 ft/s from rest, considering both the swing and a hypothetical scenario where the child is on ice. There are inquiries about relevant equations and calculations needed to support their reasoning.

Discussion Status

The discussion is active, with participants offering suggestions for calculations related to acceleration and velocity. There is a recognition of the challenges involved in achieving such a speed, but no consensus has been reached on the feasibility of the scenario.

Contextual Notes

Participants are grappling with the implications of setting a swing in motion at a high initial velocity and are considering the physical limitations of both the swing and the child involved.

lisa1234
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Is it impossible for me to to set a swing (on which a child weighing 66 pound is sitting) going, so that its velocity from the very beginning is 33 ft/s? Why/Why not?

I find myself quite lost with this question so I have no attempts at any solutions...all i know is that it sounds impossible to me..but i don't know how to prove it:S Maybe one could in some way use momentum p=m*v ...

Would really appreciate some help!:)
 
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Welcome to PF!

Hi lisa1234! Welcome to PF! :smile:
lisa1234 said:
Is it impossible for me to to set a swing (on which a child weighing 66 pound is sitting) going, so that its velocity from the very beginning is 33 ft/s? Why/Why not?

Well, suppose the child, instead of being stationary on a swing, was stationary on the ground (say, on ice) …

could you then set the child moving at 33 ft/s ?
 
No probably not...i mean it's almost impossible to even run that fast..
But aren't there any equations i can use to prove it??
 
Well, try calculating the acceleration that would be needed to set anyone moving with any velocity in no time assuming that the velocity in the beginning was 0 :P. This advice is not as stupid as it seems to be ;)
 
tiny-tim said:
Well, suppose the child, instead of being stationary on a swing, was stationary on the ground (say, on ice) …

could you then set the child moving at 33 ft/s ?

What would happen if another child collided with it?
 

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