Question

A particle covers half of the total distance with the speed of the v1 and rest of the half distance with the speed v2. It's average speed during the complete journey is?

Answer 1

Answer:

HEYA here is u r answer

Explanation:

A body travelling between two positions travels first half of distance with speed V1 and second half of the distance with speed v2. The average speed of the total motion is ==2V1V2÷V1+V2.

let x be the total distance between 2 positions.

Let t1 be time for first half distance and t2 is time for next half distance.

AVG. SPEED =s ÷t1+t2

substitute t1=s/2v1 and t2=s/2v1v2.

so avg. speed is

2v1v2/v1+v2.

HOPE IT HELPS YOU. ...

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