physics

⦁ A ball thrown horizontally at 25 m/s travels a horizontal distance of 50 m before hitting the ground. From what height was the ball thrown?

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  1. Xo = 25 m/s.
    d = 50 m
    Tf = Fall time.

    d = Xo*Tf = 25 * Tf = 50 m
    Tf = 2 s.

    h = 0.5g*Tf^2 = 4.9*2^2 = 19.6 m.

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