If A is traveling at 72 km per hour on a highway. B is
traveling at a speed of 25 meters per second on a highway.
What is the difference in their speeds in m/sec.

Answer Posted / 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

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