Question

A particle moves in a circle with O as centre and AO = OB = 5, as radius, as shown in the figure.
It starts from A. Calculate:
(i) The distance covered, and
(ii) The displacement, when it reaches B.​

Answer 1

Explanation:

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Answer 2

Answer:-

Radius =5cm

Distance covered=Circumference of semicircle

$\\ \tt{:}\longrightarrow \pi r$

$\\ \tt{:}\longrightarrow \dfrac{22}{7}\times 5$

$\\ \tt{:}\longrightarrow \dfrac{110}{7}$

$\\ \tt{:}\longrightarrow 15.7cm$

Displacement=Diameter of circle

$\\ \tt{:}\longrightarrow Diameter=2\times radius$

$\\ \tt{:}\longrightarrow Diameter=2(5)$

$\\ \tt{:}\longrightarrow Displacement=10cm$