A person completes half of its journey with speed v 1 and rest half with speed v 2 . The…
Physics · NEET · NTA Exams — Kinematics
A person completes half of its journey with speed v1 and rest half with speed v2. The average speed of the person is :
- \(v=\frac{1}{2}\left(v_{1}+v_{2}\right)\)
- \(v=\frac{2 v_{1} v_{2}}{v_{1}+v_{2}}\)
- \(v=\frac{v_{1} v_{2}}{v_{1}+v_{2}}\)
- \(v=\sqrt{v_{1} v_{2}}\)
Answer
(B) v= 2 v_ 1 v_ 2 v_ 1 +v_ 2
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