Question

a train running at a speed 72 km/h that's cross 260 metrer​

Answer 1

Relative speed = ( 42 + 30 ) km/hr

= 72 km/hr

= ( 72 * 5 / 18 ) m/sec

= 20 m / sec.

Distance covered in passing each other =

( 128 + 132) m = 260m.

∴ Required time = 260 / 20 sec

= 13 sec

i hope it will helps you☺

thank u

Answer 2

Answer:

heya dear.....(•‿•)

Step-by-step explanation:

hope it helps....

thank uh...(◍•ᴗ•◍)❤