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A hot-air balloon is rising upward with a constant speed of 2.95 m/s. When the balloon is 3.30 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

  • physics -

    Consider the compass: you know the initial vertical velocity, its initial height, and gravitational acceleration.

    hfinal=hinitial+ vi*time -4.9 t^2
    solve for t. hfinal is 0, hinitial is 3.30

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