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March 28, 2017

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two vhiles move in opposite dirctions to each other with constant speeds of 20 m/s and 30 m/s if the initial distance betwen the vehicles is 100 km. how many second later do they meet

  • physics - ,

    The distance between them decreases at a rate 50 m/s.

    Time required to meet
    t = 100,000 m/50 m/s
    = 2000 seconds
    = 33 minutes & 20 seconds

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