A train 1 moves from East to West and another train 2 moves from West to East on the
equator with equal speeds relative to ground. The ratio of their centripetal accelerations 
relative to centre of earth is
A
>1
B
C
<1
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The rotation of earth is from west to east. So the velocity of train 2 increases. 
.
Hence centripetal acceleration of train 2 is more.
Hence, 
is less than 1.
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