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A man travel half time of …

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A man travel half time of it's journey with the speed of 5m\s and for remaining half time he move half of it's total distance travelled,with the speed of 3m\s and remaining half distance with speed of 6m\s.find out the average speed
  • 2 answers

Nisham Singh 6 years, 6 months ago

It's wrong correct ans is 4.5m/s

Ranjeet Kumar 6 years, 6 months ago

Let total distance be 2x t_1 = (x/5)s t_2 = (x/3)s Average speed = total distance/ (t_1+ t_2) = 2x/{(x/5)+(x/3)} = 2x/{8x/15} = 3.75ms^ -1
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