SOLUTION: a train 150 m long
is running at 72 km / hrs. It cross the bridge in 13 sec.find the length of the bridge
Algebra.Com
Question 968028: a train 150 m long
is running at 72 km / hrs. It cross the bridge in 13 sec.find the length of the bridge
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The train "cross the bridge in 13 sec."
That means that 13 seconds after the front of the train reached the bridge, the whole train had completely cleared the bridge.
During those ,
a train going at ,
would travel .
That means that 13 seconds after the front of the train reached the bridge,
the front of the train had traveled ,
and the back of the train, behind the front,
had just cleared the bridge.
The length of the bridge is
.
RELATED QUESTIONS
A train running at a uniform speed passes a bridge 275m long in 15 seconds and another... (answered by ankor@dixie-net.com)
A train running at a speed of 6m/sec crosses a bridge 160m long in 22 seconds. Find the... (answered by ankor@dixie-net.com)
A train 300m long is running at a speed of 60km/hr. How long will take to cross the... (answered by macston)
a train 100 metre long running at 54 km /hr takes 20 seconds to pass a bridge..the lenght (answered by josmiceli)
A train moving at an average speed of 90 km/h takes 8 seconds to completely cross a... (answered by ikleyn)
A train of 18 carriages each of 50m length with an engine of 50m length is running at... (answered by lwsshak3)
A train running at a speed of 72 km/hr takes 25 seconds to cross an electric pole.
What... (answered by math_helper,ikleyn)
Ian is standing 1.4 miles across a 2 mile railroad bridge when he sees a train... (answered by ankor@dixie-net.com)
it takes 5 min. for a 30 car train to cross a bridge. how long will it take a 45 car... (answered by TimothyLamb)