A particle covers half of its total distance with speed v1 and the rest half distance with speed v2 . Its average speed during the complete journey is
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Explanation:
Using formula of speed, v
1
=
t
1
x
so, t
1
=
v
1
x
And another half distance (x), covered with speed v
2
in time t
2
.
so, v
2
=xt
2
t
2
=
v
2
x
Average Velocity=
Total time
Total distance
Total time=t
1
+t
2
=
v
1
x
+
v
2
x
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