(A) 575 mts
(B) 654 mts
(C) 1065 mts
(D) 1102 mts
Correct Option is: C
Given speed of the train = 63 km/hr
= 63*5/18 m/s =17.5m/s
Let the length of the pole = x mts
Given time taken to cover the distance of (510+ x)mts is 90 sec.
We know speed = distance/time m/s
17. 5 = 510+x/90
1575 = 510+x
x = 1065
Therefore the length of the pole is 1065 mts