Question

Two bodies $A$ and $B$ are moving towards a plane mirror with speeds $V_{A}$ and $V_{B}$ respectively as shown in the figure. The speed of image of A with respect to the body B is:

• A. $V_{A}+V_{B}$
• B. $\left| V _{ A }- V _{ B }\right|$
• C. $\sqrt{V_{A}^{2}+V_{B}^{2}}$
• D. $\sqrt{ V _{ A }^{2}- V _{ B }^{2}}$

Answer 1

Answer: (A)

$V _{ A ' B }= V _{ A }+ V _{ B }$