Question:

How does the equation number four regarding in the laws of uniformly of accelerated motion was formed?

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How does the equation number four regarding in the laws of uniformly of accelerated motion was formed?

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  1. Assuming you are asking about the derivation of:

    v = sqrt(u^2 + 2as)...

    then the two equations:

    v = u + at

    and

    s = (0.5 (u+v))t

    can be combined to eliminate t, by multiplying both sides of the second equation by (v-u)/t, which can be simplified as:

    as = 0.5 (v^2 - u^2) giving

    v^2 = u^2 + 2as

    thus

    v = sqrt(u^2 + 2as)

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