Question

A body move from point A to point B with a velocity V1 vector and returns to point A with a velocity V2 vector. Then over the entire journey
1. The average speed is 1/2( v1+ v2)
2. The average speed 2 v1v2/ (v1 + v2)
3. The average speed velocity is zero
4. The average velocity is 1/2( v1- v2) vector

Answer 1

I think option 4. is correct....
bcz both vactors have opposite direction...
so in the calculation of average..V2 is minus....

hope this helps to u....
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