A car moving on a straight road covers the one fourth of the
total distance with 36 km/h and the rest with 54 km/h, the
average speed of car is
1 )11 m/s
2)40m/s
3) 27 m/s
4) 18 m/s
Answers
Answered by
0
Explanation:
Given,
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
Answered by
0
Answer:
Given,
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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