How High Must an Object Be Dropped to Achieve a Force of 203.66N?

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Homework Help Overview

The discussion revolves around determining the height from which an object must be dropped to achieve a specific force of 203.66N, given its mass of 6.8kg and an initial velocity of 29.95 m/s. Participants are exploring the relationship between force, mass, and height in the context of gravitational physics.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the relevant equations, particularly F = ma, and question whether the focus is on maintaining the same force or achieving the same velocity upon impact. There is a debate about the feasibility of achieving the desired force at any height, given the constant gravitational force acting on the object.

Discussion Status

The conversation is ongoing, with various interpretations of the problem being explored. Some participants suggest that varying the mass of the object may be necessary to achieve the desired impact force, while others express confusion about the initial conditions and the implications of the problem setup.

Contextual Notes

Participants are considering the constraints of the problem, including the constant gravitational acceleration and the need to recreate a specific impact scenario. There is mention of varying the mass to meet the impact force requirement, which introduces additional complexity to the discussion.

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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 achieve the same force?

Homework Equations



Not sure which formulas to use for this?

The Attempt at a Solution

 
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F = ma
 
is it "the same force or same velocity" at he end of the question
 
Same force is what I need.
 
If same force is needed then it is not possible for any height. At any height Earth's gravitation will be approx. 9.8 and F = mg and mass will remain constant.
 
it is definitely same velocity
 
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.
 
this means mass has to be variable how are you planning to vary mass
 
By adding weight to the object being dropped to achieve the desired impact force.
 
  • #10
is the velocity 29.95 at the moment of impact
 
  • #11
Yes, am I missing something?
 
  • #12
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
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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