MCQ
A point traversed $3 / 4$ th of the circle of radius $R$ in time $t$. The magnitude of the average velocity of the particle in this time interval is
  • A
    $\frac{\pi R}{t}$
  • B
    $\frac{3 \pi R}{2 t}$
  • $\frac{R \sqrt{2}}{t}$
  • D
    $\frac{R}{\sqrt{2} t}$

Answer

Correct option: C.
$\frac{R \sqrt{2}}{t}$
c
(c)

$v_{ av }=\frac{\text { Displacement }}{\text { Time }}=\frac{\sqrt{2} R}{t}$

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