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
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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)
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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