A body moving along a straight line, covers first half of its distance with uniform speed $$V1$$ and the second half of the distance with uniform speed $$V2$$ then average speed of body is

Question

A  body moving along a straight line, covers  first half of its distance with uniform speed $$V1$$ and the second half of the distance with uniform speed $$V2$$ then average speed of  body is

Infinity Learn · Accepted Answer

Let us consider total distance is ‘S’ First half distance is $$S/2$$ with $$speedV1$$  Second half distance is $$S/2$$ with speed $$V2$$ average $$speed=total$$ distancetotal $$time=St1+t2t1$$ is the time trave forl the distance $$S/2V1=S2t1$$           ∴$$t1=S2V1$$;   $$t2=S2V2$$   Average speed  $$=SS2V1+S2V2=SSV2+V12V1V2=2V1V2V1+V2$$

A body moving along a straight line, covers first half of its distance with uniform speed $V_{1}$ and the second half of the distance with uniform speed $V_{2}$ then average speed of body is

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A body moving along a straight line, covers first half of its distance with uniform speed V1 and the second half of the distance with uniform speed V2 then average speed of body is

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Ready to Test Your Skills?

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A body moving along a straight line, covers first half of its distance with uniform speed $V_{1}$ and the second half of the distance with uniform speed $V_{2}$ then average speed of body is