Physics, asked by suitnairfjbabu, 1 year ago

A body covers 1/3 of his journey with the speed of um/s and next 1/3 with the speed of v m/s.calculate the average velocity

Answers

Answered by kvnmurty
0
let distance total = S.     there is something missing in the question... perhaps the body travels  2/3 of the journey with  a speed of  v.. not 1/3...

duration of time taken = (S/3)/u   +   (2S/3)/v  = S (v+2u) / (3uv)

avg velocity = distance total / total duration of time 
           = S / [ S (v+2u) / (3uv) ]   = 3 u v /(v+2u)

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