Velocity comparison -- Which thrown mass hits the ground first?

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Homework Help Overview

The discussion revolves around a physics problem concerning the comparison of velocities of two thrown masses and their impact times on the ground. The participants are exploring the implications of air resistance and the initial conditions of the objects being thrown.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are questioning the assumption of simultaneous impact and whether air resistance should be considered. There is also a focus on the initial velocity of one object at the moment the second is thrown.

Discussion Status

The conversation is ongoing, with some participants expressing uncertainty about their previous conclusions. There is a recognition of the need for calculations, but guidance is offered regarding the forum rules that prevent providing complete solutions until the original poster has made an attempt.

Contextual Notes

There is mention of the forum rules that prohibit providing full solutions until the original poster has engaged with the problem, highlighting a focus on learning and individual effort.

mathbrain9
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Homework Statement
A person is on a bridge is an object is thrown up at 10m/s with it going to the edge of the bridge. The person throws a 2nd object 10m/s down when the 1st is at the edge. Which makes it first?
Relevant Equations
v= d/t
On the test, I said they hit the ground simultaneously. However, that, in retrospect, doesn't seem to be the correct solution.
 
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Why don't you think that's right?
 
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mathbrain9 said:
On the test, I said they hit the ground simultaneously. However, that, in retrospect, doesn't seem to be the correct solution.
What new perspective after the test made you change your mind? It is important that you figure this out because you don't want to second guess yourself when the next test comes around.
 
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Does it specify whether to ignore air resistance?
 
What is the velocity of the first object at the instance you throw the second one downwards? Assume we are ignoring air resistance.

As I am unwell, I haven't done any calculations. But I think I know whether your first answer was right or wrong, and someone might do the sums for you eventually to check it.
 
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DrJohn said:
someone might do the sums for you eventually to check it.
The forum rules prohibit any of us from doing those sums until the OP has done so. Meanwhile, the OP has not posted anything beyond the original post here. It would be improper to respond to "I thought the answer was X but now I am not sure" with a correct solution, a full mathematical treatment and the reasoning connecting the two. That would not be fair to the other posters who actually go to the trouble of showing their work.
 
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