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An object moves with 5 m/s towards right while mirror moves with 1 m/s towards the left as shown. Find velocity of image.

 

$(a)\;5\;m/s\;towards \;right \\ (b)\;7\;m/s\;towards \;left \\ (c)\;7\;m/s\;towards \;right \\ (d)\;5\;m/s\;towards \;left $

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1 Answer

$V_i-V_m=V_m-V_0$
$V_i-(-1)=(-1)-5$
$\therefore V_i=-7 m/s$
7 m/s and direction towards left
Hence b is the correct answer.
answered Feb 11, 2014 by meena.p
 

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