Physics

Problem

You know the initial speed

u

of a ball thrown vertically upward and the time

t

after which its displacement from the point of throw is required. Which equation of motion is most convenient for calculating this displacement when the acceleration due to gravity is constant? a)

s = ut + a t^{2}

s = v t + \dfrac{1}{2} a t^{2}

s = ut + \dfrac{1}{2} a t^{2}

s = ut - \dfrac{1}{2} a t^{2}

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