Finding Initial Velocity to Equations

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Homework Help Overview

The discussion revolves around identifying the appropriate equations to determine the initial velocity of an object within the context of kinematics.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore various equations related to motion, questioning the general applicability of these equations for finding initial velocity. Some participants suggest that the choice of equation depends on the known variables, while others challenge the premise of a singular equation for this purpose.

Discussion Status

The conversation is ongoing, with participants providing different equations and clarifying that the applicability of these equations is contingent on the information available. There is recognition of the need to work backward from final conditions to determine initial conditions.

Contextual Notes

Some participants note that there may not be a universal equation for finding initial velocity without specific context or known variables, indicating a need for careful consideration of the problem setup.

navarro714
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What equation do I use to find the initial velocity of an object?
 
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You can use Velocity = Initial Velocity + Acceleration*Time

V=Vi + at
 
Or s = ut + 0.5at^2

or v^2 = u^2 + 2as

it depends on what you know already.
 
There is no equation "to find the initial velocity of an object".
 
Sorry -- that was a bit hasty. I guess there could be a problem that gave you final conditions and asked you to work backward to the initial conditions. As tyco05 said the equations you would use to do that would depend on what you already know so there is no equation in general "to find the initial velocity of an object".
 
tyco05 said:
or v^2 = u^2 + 2as

Thank you!
 

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