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6-48.

Spaceman on the moon On the moon, the acceleration due to gravity is about . An astronaut jumps into the air with an initial upward velocity of ft/s. Homework Help ✎

  1. How long is the astronaut off the ground?

    What do the zeros of s(t) represent?

  2. How far off the ground does the astronaut rise?

    Find the y-value of the vertex of . You can use Algebra or Calculus.