A car moving on aa straight road covers 1/3 rd of the distance with 20 km/h and the rest with 60 km/h.What is the average speed of the car ?
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Answered by
2
Answer:
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Answered by
2
Answer:
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Explanation:
Velocity for one third of distance V
1
=20km/h
Velocity for two third of distance V
2
=60km/h
Time take to cover one third of distance t
1
=
V
1
d/3
=
20
d/3
Time taken to cover two third of distance t
2
=
V
2
2d/3
=
60
2d/3
Average velocity =
totaltime
Totaldistance
V
av
=
t
1
+t
2
d
=
20
d/3
+
60
2d/3
d
=36km/h
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