Answer / masterx

its simple we have to convert a 72 km/ hour into m/s


so 72*5/18 = 20 m/s


now difference : 25 -20 = 5 m/s

Answer / musa

If A is Traveling 72km/hour then its meter/sec is

1km=1000m then 72km=72000m and
1min.=60sec then 1hour(60min.)=3600 sec

72000m/36000= 20

and B is traveling 25meters per sec
so diff. is 25-20 =5

Answer / chethan kumar d

95

Answer / henry

1175

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