A train800 metre long is running with a speed of 78 km/hr. It crosses a tunnel in 1 minute. What is the length of the tunnel (in metres)?
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@Physics_Guru_Dev
Speed = 78 km/hr
=7860×1007860×100 m/min
=1300 m/min
Distance travelled in 1 min
=1300 m
1300=l+8001300=l+800
l=500 m =length of tunnel
Speed = 78 km/hr
=7860×1007860×100 m/min
=1300 m/min
Distance travelled in 1 min
=1300 m
1300=l+8001300=l+800
l=500 m =length of tunnel
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