Find the difference of heights of the objects

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The discussion revolves around a physics problem involving two particles thrown horizontally from different heights but landing at the same time. Participants question the validity of the problem, noting that if both objects are thrown with the same initial speed and from different heights, their fall times should differ. The consensus is that the problem lacks clarity and possibly contains errors, as it contradicts the laws of physics regarding acceleration and time of fall. There is a call for additional information or clarification about the conditions of the throw. Overall, the problem is deemed incorrect based on the provided details.
annalian
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Homework Statement


Two particles are thrown horizontally from different heights with equal initial speeds. Find the difference of heights h1-h2 if the object fall to the ground at the same time.

Homework Equations


h=voyt+gt^2/2

The Attempt at a Solution


As voy=vox=0, t1=t2, the difference of heights is 0. Am i right?
Image http://oi64.tinypic.com/2cpqr6a.jpg
 
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annalian said:
As voy=vox=0, t1=t2, the difference of heights is 0. Am i right?
How can the difference in heights be 0 if the problem statement says that they are thrown "from different heights".

Is there a figure with this problem, or is there any additional information? How can two particles be thrown horizontally from different heights at the same speed and land on the ground at the same time? Are they thrown at different times? There seems to be missing information in this problem.
 
TomHart said:
How can the difference in heights be 0 if the problem statement says that they are thrown "from different heights".

Is there a figure with this problem, or is there any additional information? How can two particles be thrown horizontally from different heights at the same speed and land on the ground at the same time? Are they thrown at different times? There seems to be missing information in this problem.
I added the image http://oi64.tinypic.com/2cpqr6a.jpg from the book
 
I can see that the objects are thrown from different heights and they land at the same height, but sorry, the picture does not make sense - that is, if the other information given in the problem (thrown horizontally at same initial speed) is correct. If the other information given in the problem is correct, the accelerations have to be different in order for the two objects to land at the same location and same time.
 
TomHart said:
I can see that the objects are thrown from different heights and they land at the same height, but sorry, the picture does not make sense - that is, if the other information given in the problem (thrown horizontally at same initial speed) is correct. If the other information given in the problem is correct, the accelerations have to be different in order for the two objects to land at the same location and same time.
So you think the problem is wrong?
 
Yes.
 

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