Question

An aeroplane travelled 4320 km in 6 hr. Find its speed in (1) km/hr (2) m/s

Answer 1

Answer:

Distance = 4320 km

Time = 6 hr

Speed = Distance / Time

           = 4320 / 6  km/hr

           = 720 km/hr

1 km = 1000 m

1 hr = 60*60 sec

720 km/hr = 720 * 1000 / 60 * 60   m/s

                  = 1200 m/s

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Answer 2

Answer:

here ,

the distance travelled , d= 4320 km

the time taken, t = 6 hr

speed in km/hr is ,

s = d/t

= 4320 km/ 6 hr

= 720 km/hr .

speed in m/s is ,

s= 720km/hr

= 720×1000 m/1×3600 s

= 200 m/s .

ANSWERED.