overpass

  1. H

    A lump of concrete falls off a crumbling overpass and strikes an automobile

    traveling on a highway below.? The lump of concrete falls 4.6 m before impact, and the automobile has a speed of 72 km/h. (a) What is the speed of impact of the lump in the reference frame of the automobile? (b) What is the angle of impact? (measured from the vertical)
  2. K

    Is there a difference between a vidock and an overpass?

    My fiance and I were having a conversation on the difference between a vidock and an overpass. Are they the same thing? or is there a difference?
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