The safe speed for a train rounding a corner 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 metres is
A. (265/7) km/h
B. (256/7) km/h
C. 32 km/h
D. 23 km/h
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সঠিক উত্তরঃ
C.
32 km/h
Explanation:
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