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Differentiation

A man is goin...

Question

A man is going away from plane mirror with a velocity of 3m/s. With what velocity is he going away from the mirror?

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Solution

Dear Student

$S p e e d o f p e r s o n g o i n g a w a y i s = 3 m / s T h e i m a g e o f t h e p e r s o n w i l l a l s o g o a w a y w i t h t h e s a m e s p e e d i n t h e o p p o s i t e d i r e c t i o n, m e a n s w i t h t h e = 3 m / s H e n c e t o t a l s p e e d w i l l b e = 3 + 3 = 6 m / s$

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