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A body travel the first 1/2 of the total distance with velocity v1 and second 1/2 with velocity v2. Calculated the A.V? A body travel the first 1/2 of the total distance with velocity v1 and second 1/2 with velocity v2. Calculated the A.V?
Let total distance be s. Velocity to travel distance s/2
There is a formula 2/Vavg=1/v1+1/v2Actually the question is indirectly asking the proof of this.To calculate assume that the total distance be 2s.during the first half ,time taken=s/V1 during the second half ,time taken=s/V2Vavg=total distance /total timeVavg=2s/(s/V1+ s/V2)=>2/Vavg=1/v1+1/v2SO if you are really helped by this solution then please approve this solution to encourage me.
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