Physics · 2011
NEET 2011 · Mains · Code B · Q103
A particle covers half of its total distance with speed v_1 and the rest half distance with speed v_2. Its average speed during the complete journey…
A particle covers half of its total distance with speed $\displaystyle \mathrm{v}_1$ and the rest half distance with speed $\displaystyle \mathrm{v}_2$. Its average speed during the complete journey is :
Official answer
(2)
$\displaystyle \frac{2 \mathrm{v}_1 \mathrm{v}_2}{\mathrm{v}_1+\mathrm{v}_2}$
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NEET (UG) 2011 Physics question, with the answer from NTA’s final answer key. Where our answers come from.