Physics

Hello, my problem is the next one:
There are three objects that are launched at the Same time But with different angles( they describe proyectile motion ) . All the objects got the Same maximun height. My question is: Is the Initial velocity the Same for the three objects? Why or Why not?
Please help

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  1. Y^2 = Yo^2 + 2g*h.
    Yo = sqrt(Y^2-2g*h).
    So if each object has the same value of Y and h, their initial Y component of velocity would be equal.

    We have 3 variables:
    1. Y = 0 = Vertical component of final velocity.

    2. Yo = Vertical component of initial velocity.

    3.The max height(h).

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