A body moves along the circumference of a circular track of radius R (Figure). What is displacement of the body when it covers 3/4th of its circumference ?

Foundation

Physics Foundation

Types of Motion Distance and Displacement

Question

$\sqrt{2} R$

$\frac{3}{4} πR$

$\frac{3}{2} πR$

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Displacement in $\frac{3}{4}$ revolution :

$QP = \sqrt{{OP}^{2} + {OQ}^{2}} = \sqrt{R^{2} + R^{2}} = \sqrt{2} R$

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