A particle covers half of its total distance with speed v1 and the rest half distance with speed v2. Its average speed during the complete journey is from Physics Motion in Straight Line Class 11 Manipur Board
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Motion in Straight Line

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Physics Part I

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A particle covers half of its total distance with speed v1 and the rest half distance with speed v2. Its average speed during the complete journey is

  • v1v/ v1 + v2

  • 2v1v2/v1 + v2

  • 2v12v22 / v12 + v22

  • v1 + v2 / 2


B.

2v1v2/v1 + v2

Velocity v = s / t

s = vt

The average speed of particle
straight v subscript av space equals space fraction numerator straight s space plus space straight s over denominator begin display style straight s over straight v subscript 1 end style plus begin display style straight s over straight v subscript 2 end style end fraction

straight v subscript av space equals space fraction numerator 2 straight v subscript 1 straight v subscript 2 over denominator straight v subscript 1 space plus straight v subscript 2 end fraction

Velocity v = s / t

s = vt

The average speed of particle
straight v subscript av space equals space fraction numerator straight s space plus space straight s over denominator begin display style straight s over straight v subscript 1 end style plus begin display style straight s over straight v subscript 2 end style end fraction

straight v subscript av space equals space fraction numerator 2 straight v subscript 1 straight v subscript 2 over denominator straight v subscript 1 space plus straight v subscript 2 end fraction

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