Question

A plane mirror is placed at origin parallel to Y axis, facing the positive x axis.An object starts from(2m,0,0) with a velocity of (2i^ + 2j^) m/s.The relative velocity of image with respect to object and in which direction?

Answer 1

Relative velocity of image w.r.t object=Velocity of image-Velocity of object
v(IO)=vI−vO=(−2i+2j)−(2i+2j)=−4i
Thus, the relative velocity of image with respect to object is along negative x axis.