Dropped object height

  • Thread starter Moose720
  • Start date
  • #1
Moose720
17
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Homework Statement


An object with a mass of 6.8kg travels at 29.95 m/s has a force of 203.66N What height would this same object needed to be dropped from in order to acheive the same force?

Homework Equations



Not sure which formulas to use for this???

The Attempt at a Solution

 

Answers and Replies

  • #2
Aditya Tarey
20
0
F = ma
 
  • #3
Aditya Tarey
20
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is it "the same force or same velocity" at he end of the question
 
  • #4
Moose720
17
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Same force is what I need.
 
  • #5
Aditya Tarey
20
0
If same force is needed then it is not possible for any height. At any height earths gravitation will be approx. 9.8 and F = mg and mass will remain constant.
 
  • #6
Aditya Tarey
20
0
it is definitely same velocity
 
  • #7
Moose720
17
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I have a product that needs to pass an impact test of a 6.8kg object traveling at 29.95 m/s. What I am wanting to do it recreate this situation but in a vertical fashion. The weight of the object can vary as long as I end up with the impact force.
 
  • #8
Aditya Tarey
20
0
this means mass has to be variable how are you planning to vary mass
 
  • #9
Moose720
17
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By adding weight to the object being dropped to acheive the desired impact force.
 
  • #10
Aditya Tarey
20
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is the velocity 29.95 at the moment of impact
 
  • #11
Moose720
17
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Yes, am I missing something?
 
  • #12
Aditya Tarey
20
0
according to me the initial weight of object should be varied mathematically with a function
so that by the time it reaches ground its weight becomes 203.66 N from 68 N now we have height as a variable and some mathematical function you wish to use, final velocity of the object. try to write mass in terms of time
 
Last edited:
  • #13
Aditya Tarey
20
0
thread ur question again so that more learned people can go through it and try to elucidate the situation a bit more it is getting complicated That is all i can offer
 

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