KinematicsHard

Question

A particle covers half of its toatl distance with speed v1 and the rest half distance withspeed v2 . Its average speed of the complete journery is

Options

A.
B.
C.
D.

Solution

Let S be the total distance travelled by the particle
Let t1 be the time taken by the particle to cover first half of the disance. Then
        
Let t2 be the time taken by the particle to cover remaing half of the disance. Then
        
Average speed, vav =
    

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