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Find the distance covered by the particl...

Find the distance covered by the particles,in the following figures,(i) and (ii) while a particle travels from A to B as shown by the arrows.

Text Solution

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(i)Actual of the path traversed is =AC+CD+BD
`tob+l+(1)/(2)sqrt(l^(2)+b^(2))[becauseDB=(1)/(2)xx"Diagonal AD"]`
(ii)Actuallength of the path traversed
=AC+CD+DB`impliesa+(pia)/(2)+a`
[`because` Circumference of a circle=`pixx"diameter"=2a+(pia)/(2)`]
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