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    Why can't a person just walk or run up a wall? What is keeping them from performing this task? Which formula, would best describe what is going on?

    © BrainMass Inc. brainmass.com February 24, 2021, 2:07 pm ad1c9bdddf

    Solution Preview

    Well, gravity is the answer.
    The gravitational force is mg, so, in order to walk up a wall, you would at least need a force bigger than mg upwards (see attached picture).
    This force would be provided by the wall, exerting friction on your feet. The friction force is proportional to the ...

    Solution Summary

    This job articulates premises of gravity. The expert determines why it is not possible for humans to run up walls.