a 150m long train is moving with a uniform velocity of 45km/hr. The time taken by the train to cross a bridge of length 850m is?? (please solve this question- i need the solution)
a) 56secs
b) 68secs
c) 80secs
d) 92secs
Answers
Answered by
7
45kmph
45*5/18=12.5m/s
total length discovered by train=850m+150m=1000m
velocity=Dispacement/time
t=s/v
t=1000m / (12.5m/s)
t=80s
time taken to cross the bridge is 80s
45*5/18=12.5m/s
total length discovered by train=850m+150m=1000m
velocity=Dispacement/time
t=s/v
t=1000m / (12.5m/s)
t=80s
time taken to cross the bridge is 80s
juridowaraj:
thank you so much...i appreciate your kindness
please do mark mean as brainiest if you find the answer helpful
me*
sure
Answered by
6
At first, change km per hour in meter per sec.
Then, velocity of train=12. 5m/s
Time taken to cross bridge=(l. of train+l. of bridge)/speed
=(850+150)/speed
=1000/12. 5=80sec.
Here l. means length
Then, velocity of train=12. 5m/s
Time taken to cross bridge=(l. of train+l. of bridge)/speed
=(850+150)/speed
=1000/12. 5=80sec.
Here l. means length
i appreciate u
Similar questions