Find the difference of heights of the objects

  • Thread starter Thread starter annalian
  • Start date Start date
  • Tags Tags
    Difference Height
Click For Summary

Homework Help Overview

The problem involves two particles thrown horizontally from different heights with equal initial speeds, and it asks for the difference in their heights if they land on the ground simultaneously.

Discussion Character

  • Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the implications of the particles being thrown from different heights yet landing at the same time. Questions arise regarding the validity of the problem's setup and whether additional information is needed.

Discussion Status

There is ongoing exploration of the problem's assumptions, with participants questioning how two objects can have different heights and still land simultaneously. Some suggest that the provided information may be inconsistent or incomplete.

Contextual Notes

Participants note the absence of a figure or additional details that could clarify the scenario, leading to confusion about the conditions under which the particles are thrown.

annalian
Messages
56
Reaction score
1

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
 
Last edited:
Physics news on Phys.org
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.
 

Similar threads

Replies
40
Views
3K
Replies
13
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
8
Views
2K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 25 ·
Replies
25
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
Replies
5
Views
2K