a girl moves with a speed of 6km/h for 2 hour and with the speed of 4km/h for the next 3 hour . find the average speed of the girl
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Answers
Answered by
8
Average speed!=total distance travelled/total time taken
Total distance=6km per hour for 2 hour =12km
4km per hour for 3 hour=12km
12+12=24km=24000m
Total time =5hour=18000seconds
24000/18000=1.33m per second
Total distance=6km per hour for 2 hour =12km
4km per hour for 3 hour=12km
12+12=24km=24000m
Total time =5hour=18000seconds
24000/18000=1.33m per second
Ridhika28:
its answer is 24km
Answered by
7
Given,
speed=6km/h
so , now we convert thus to m/s
6×1000/60×60
16.6m/s
time=2hr=720
speed=4km/h
40×1000/60×60=1.11
time=10800sec.
average speed=total distance travelled/total tume taken
=16.6+1.11/720+10800
17.71/18000
0.0009838 m/s
thank q
speed=6km/h
so , now we convert thus to m/s
6×1000/60×60
16.6m/s
time=2hr=720
speed=4km/h
40×1000/60×60=1.11
time=10800sec.
average speed=total distance travelled/total tume taken
=16.6+1.11/720+10800
17.71/18000
0.0009838 m/s
thank q
thk u for this
welcome dear
but what's the ans
answer is 24km
how cab speed comes in km we have to convert it
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