\textbf{159.} From the top of a building 40 meters high, a ball is thrown with an initial speed $V_0$ in a direction that makes an angle of 45 degrees with the horizontal, upward and to the right. If the ball hits the ground at a point 120 meters from the base of the building, what is $V_0$ in meters per second? (Air resistance is negligible and $g = 10\,\dfrac{\text{m}}{\text{s}^2}$.)
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(1) $40$ \hfill (2) $30$ \hfill (3) $50$ \hfill (4) $60$
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