Simple Motor Project Solution Needed.

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The discussion focuses on creating a motor that can move an object, specifically a coin, using copper wire. One suggested method involves attaching a wheel to the motor's output, with a string and coin, to mimic a fishing rod's action. Another idea proposes using a wheel with a straw attached, allowing the straw to move back and forth like a piston to push the coin. Participants are seeking clearer explanations and visualizations of these concepts. Overall, the thread emphasizes innovative approaches to converting rotational motion into linear movement for the project.
UsamaN
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Hi, so in class we are suppose to make a motor kinda like the one in this video with copper wire.

That part shouldn't be hard but I also need to make it move something (like a coin), I'm not really to sure how to make that happen. Does anyone have any insight on how I can get the rotational motion of the coil to move something?

I was thinking about adding a wheel to one of the open ends of the wire and attaching string and a coin to it so when it moves with the motor it lures the coin in like a fishing rod, but I'm sure there are better ways of doing it, any idea?

Any help would be appreciated, thanks. c :
 
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Yes that's one way to do it converting the spinning motion into a pulling motion.

Another idea would be a wheel with a straw attached via one nail so as the wheel spins the straw moves back and forth like a piston so you could push the coin.
 
jedishrfu said:
Yes that's one way to do it converting the spinning motion into a pulling motion.

Another idea would be a wheel with a straw attached via one nail so as the wheel spins the straw moves back and forth like a piston so you could push the coin.
I can't really visualize what you mean, mind rephrasing it for me please.
 
Like this arrangement:
crankslider.gif
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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