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physics

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A rock thrown horizontally from a bridge hits the water below at a horizontal distance x directly below the throwing point. The rock travels a smooth parabolic path in time t.
A.) Show that Therapy vertical distance of the bridge above water is 1/2gr2.
B.) What is the height of the bridge if the time of the rock is airborne is 2 seconds?

  • physics -

    How can the rock land "directly below the throwing point" and a horizontal distance x away?

    Perhaps you left out some important words of the question.

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