Physicsmedium · Past Paper
A body covers first half of total distance with speed v1 and second half with speed v2. The average speed is:
A(v1+v2)/2
B2v1v2 / (v1+v2)
Cv1v2 / (v1+v2)
Dsqrt(v1v2)
✓ Correct Answer: B — 2v1v2 / (v1+v2)
This is the harmonic mean formula for average speed over equal distances.
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