A body covers one-third of the distance with speed v 1 . For the remaining distance, it travels for half of the time with speed v 2 \& another half of the time with speed v 3 . Find its average

Question

A body covers one-third of the distance with speed $v_{1}$ . For the remaining distance, it travels for half of the time with speed $v_{2}$ \& another half of the time with speed $v_{3}$ . Find its average speed. If average speed is $\frac{n v _{1} ( v _{2} + v _{3} )}{4 v _{1} + v _{2} + v _{3}}$ . Fill $n$ in OMR Sheet

TestHub · Accepted Answer

3 2 d ​ = v 2 ​ × 2 t ′ ​ + v 3 ​ 2 t ′ ​ t ′ = 3 ( v 2 ​ + v 3 ​ ) 4 d ​ v a vg ​ = 3 v 1 ​ d ​ + 3 ( v 2 ​ + v 3 ​ ) d ​ d ​ v a vg ​ = 4 v 1 ​ + v 2 ​ + v 3 ​ 3 v 1 ​ ( v 2 ​ + v 3 ​ ) ​

Physics - Kinematics Question with Solution | TestHub

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