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Alex, a mountaineer, must leap across a wide crevasse.(Figure 1) The other side of the cre
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Alex, a mountaineer, must leap across a wide crevasse.(Figure 1) The other side of the crevasse is below the point from which
he leaps, as shown in the figure. Alex leaps horizontally and successfully makes the jump. Determine the algebraic sign of
Alex's x velocity and y velocity at the instant he leaves the ground at the beginning of the jump
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