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Problem
Problem
A particle travels first half of the total distance with speed
v
1
v_1
v
1
. In second half distance, constant speed in
1
3
\frac{1}{3}
3
1
rd time is
v
2
v_2
v
2
and in remaining
2
3
\frac{2}{3}
3
2
rd time constant speed is
v
3
v_3
v
3
. Find average speed during the complete journey.
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