a point transvered 3/4thof the circle of radius in atime the magnitude of average velocity of the time interval is
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If we divide a circle in 4 equal parts then 3/4th circle will look like that of given in picture.
Well, it I started obvious that displacement of particle to travel 3/4th circle is Hypotenuse of right angled triangle formed in that portion.
Displacement = √(R^2 + R^2) = R√2
Average velocity = Displacement / Time
= R√2 / t
Magnitude of average velocity in this time interval is R√2 /t.
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