6. A train 175 m long is travelling at a speed of
54 km/h and a man on the road parallel to
the railway track is cycling at a speed of
9 km/h. Find the time the train will take to
pass the man if they are moving
(1) in the opposite direction
(i) in the same direction
Answers
Answer:
11th
Physics
Motion in a Plane
Velocity
A 175 m long train is trave...
PHYSICS
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Asked on November 22, 2019 by
Sathish Sompura
A 175 m long train is travelling along a straight track with a velocity 72 km
−1
h. A bird is flying parallel to the train in the opposite direction with a velocity 18 km
−1
h. The time taken by the bird to cross the train is :
MEDIUM
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ANSWER
Given,
Length of train=175m
Velocity of bird=18kmph
Velocity of train=72kmph
Taking everything relative to train.
Velocity of bird with respect to train=18+72=90kmph=25ms
−1
Length to be covered by bird wrt train to cross the train=175m
t=
v
s
=
25
175
=7
t=7s
Step-by-step explanation:
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