1.

If a train travelling at 72 kmph is to be brought to rest in a distance of 200 metres, then its retardation should be             [SCRA 1998; MP PMT 2004]

A.             20 \[m{{s}^{-2}}\]  
B.             10\[m{{s}^{-2}}\]
C.             2 \[m{{s}^{-2}}\]    
D.             1 \[m{{s}^{-2}}\]
Answer» E.


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