a person travels along a straight road for the first half of the displacement second half with velocity v2 then the mean velocity is.??
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A person travels along a straight road for the first half length with a velocity v1 and the second half length with velocity v2. What is the mean velocity of the person ? =dt1+t2=2u1v2(v1+v2).
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Answer:
2 v1v2 /(v1 + v2)
Explanation:
time taken by a person to travel 1st half length, t1 = d/2/v1 = d/2v1
time taken by a person to travel 2nd half length = t2 = d/2/v2 = d/v2
therefore total time = t1 + to = d/2 = [d/v1 + d/v2] = d(v1 + v2)/2v1v2
therefore Mean velocity and Average velocity = d/t1 + t2 = 2 v1v2/ (v1 + v2)
SORRY FOR TAKING TIME. MY TYPING IS BIT SLOW. BY THE WAY THIS IS YOUR ANSWER
HOPE IT WILL HELP YOU☺️
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