A 100 m long train crosses a man travelling at
5 km/h, in opposite direction in 6 seconds, then
the velocity of train is :-
(1) 40 km/h
(2) 55 km/h
(3) 20 km/h
(4) 45 km/h
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given
v = (x+5) km /hr× (5/18) to convert in m/s
s=100
t =6 sec
formula
s= vt
calculation
100 = (x+5) × 5÷18 ×6
x = 55 km/hr
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