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Review Conceptual Example $15$ before attempting this problem. Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of $26\mathrm{.}7\frac{m}{s}$ to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the ground beneath the cliff. Gun B is fired straight downward. In the absence of air resistance, how long after pellet $B$ hits the ground does pellet A hit the ground?

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