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If a body covers first half of its journey with uniform speed `v_(1)` and the second half of the journey with uniform speed `v_(2)`. Then the average speed isA. `V_(1)+V_(2)`B. `(2V_(1)V_(2))/(V_(1)+V_(2))`C. `(V_(1)V_(2))/(V_(1)+V_(2))`D. `V_(1)V_(2)` |
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Answer» Correct Answer - B Average speed `=(S_(1)+S_(2))/(t_(1)+t_(2))impliesv=(2V_(1)V_(2))/(V_(1)+V_(2))` |
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