A 150 m long train is moving with a uniform velocityof 45 km/hr. The t

1.	A 150 m long train is moving with a uniform velocityof 45 km/hr. The time taken by the train to cross abridge of length 850 metre is(1) 56 sec10.(2) 68 sec(4) 92 sec(3) 80 sec
Answer» 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

A 150 m long train is moving with a uniform velocityof 45 km/hr. The time taken by the train to cross abridge of length 850 metre is(1) 56 sec10.(2) 68 sec(4) 92 sec(3) 80 sec

Answer»

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