প্রশ্ন ও উত্তর
The safe speed for a train rounding a corner is proportional to the square root of the radius . If the safe speed for a curve of radius 49 meters is 28 km/h. The safe speed for a curve of radius 64 metes is :
06 Apr, 2025
প্রশ্ন The safe speed for a train rounding a corner is proportional to the square root of the radius . If the safe speed for a curve of radius 49 meters is 28 km/h. The safe speed for a curve of radius 64 metes is :
সঠিক উত্তর
(256/7) km /h
মন্তব্য
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