A particle moves perpendicularly towards a plane mirror with a constant speed of \( 4 \mathrm{~c...

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A particle moves perpendicularly towards a plane mirror with a constant speed of \( 4 \mathrm{~cm} / \mathrm{s} \). What is the speed of the image observed by an observer moving with \( 2 \mathrm{~cm} / \mathrm{s} \) along the same direction? Mirror is also moving with a speed of \( 10 \mathrm{~cm} / \mathrm{s} \) in the opposite direction.
(All speeds are with respect to ground frame of reference)
(a) \( 4 \mathrm{~cm} / \mathrm{s} \)
(b) \( 12 \mathrm{~cm} / \mathrm{s} \)
(c) \( 14 \mathrm{~cm} / \mathrm{s} \)
(d) \( 26 \mathrm{~cm} / \mathrm{s} \)
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