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    Find height of building after a rock and a marble are thrown downward.

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    From a rooftop, a rock is released at rest and 2 seconds later, a marble is thrown downward from the roof with initial speed of 24.5 m/sec. Both hit the ground at the same instant.

    Find the height of the building.

    © BrainMass Inc. brainmass.com March 4, 2021, 5:43 pm ad1c9bdddf
    https://brainmass.com/physics/classical-mechanics/height-building-after-rock-marble-thrown-downward-7749

    Solution Preview

    Let H = the height of the building and t the flight time for the marble. For the rock, y(t) is:

    (1) H= .5 g t^2
    For the ...

    Solution Summary

    The height of building after a rock and a marble are thrown downward are determined. with clear explanations, the problem are solved showing the calculations.

    $2.49

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