A point object is moving with velocity ${\text{v}}_0=2\widehat{\text{i}}-3\widehat{\text{j}}+4\widehat{\text{k}}$ in front of a moving plane mirror whose normal is along x - axis. The mirror is moving with velocity ${\text{v}}_{\text{m}}=\widehat{\text{i}}-4\widehat{\text{j}}+2\widehat{\text{k}}$. Find the velocity vector of image.

• A

  $-\mathrm{5 }\widehat{\text{j}}$
• Correct answer
  B

  $-\mathrm{3 }\widehat{\text{j}}+\mathrm{4 }\widehat{\text{k}}$
• C

  $-\mathrm{4 }\widehat{\text{j}}+\mathrm{2 }\widehat{\text{k}}$
• D

  $\mathrm{2 }\widehat{\text{i}}-\mathrm{3 }\widehat{\text{j}}+\mathrm{2 }\widehat{\text{k}}$

Hence, the correct answer is option: 'B'.