What do you think? What conditions would have to be true for you to be able to use these three equations interchangeably?Can I use three equeations above for the same concept 'constant accelaration' interchangeablly?
I would rewrite this one as v^2 = u^2 + 2ax, since you're using u as the initial velocity.3. u^2 = + 2ax
Those equations are valid for constant acceleration, but do they say the same thing? Hint: Note that each equation relates a different pair of "unknowns".Can I use three equeations above for the same concept 'constant accelaration' interchangeablly?
If a = 0, we get 'velocity' in every equations.What do you think? What conditions would have to be true for you to be able to use these three equations interchangeably?
But what about if ##a \neq 0##?If a = 0, we get 'velocity' in every equations.
I think, I don't get 'velocity' in every eqeations.But what about if ##a \neq 0##?
I'm not sure what you mean by "get velocity". Only the first equation is an equation for the velocity ##v##.I think, I don't get 'velocity' in every eqeations.
To get the velocity either initial or final velocity. It is my own presumption. I may be wrong with this concept.I'm not sure what you mean by "get velocity". Only the first equation is an equation for the velocity ##v##.
Perhaps we should take a step back and ask: why would you want to use these three equations interchangeably?
The initial velocity is just ##u##; you don't solve for that, it's something that should be given in the statement of the problem.To get the velocity either initial or final velocity.