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Posted by on Sunday, September 12, 2010 at 10:28pm.

TWO LOCOMOTIVES APPROACH EACH OTHER ON PARALLEL TRACKS. EACH HAS A SPEED OF 95KM/H WITH RESPECT TO THE GROUNG. IF THEY ARE INITIALLY 8.5KM APART, HOW LONG WILL IT BE BEFORE THEY REACH EACH OTHER?

  • physics - , Monday, September 13, 2010 at 12:39am

    The distance between them decreases at a rate of 190 km/h. The time required to reduce the spacing from 8.5 km to 0 is:
    8.5 km/(190 km/h)= 0.04474 h = 2.68 minutes = 2 minutes and 41 seconds

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