A person walks at a velocity v in a straight line forming an angle α with the plane of a mirror. Determine the velocity vr e l at which he approaches his image, assuming that the object and its image are symmetric relative to the plane of the mirror.

Question

A person walks at a velocity v in a straight line forming an angle α with the plane of a mirror. Determine the velocity vr e l at which he approaches his image, assuming that the object and its image are symmetric relative to the plane of the mirror. (A) 2 v sin α (B) 2 v cos α (C) v sin α (D) v cos α

Tardigrade Admin · Accepted Answer

Correct answer is (a) 2 v sin α

Q. A person walks at a velocity $v$ in a straight line forming an angle $α$ with the plane of a mirror. Determine the velocity $v_{re l}$ at which he approaches his image, assuming that the object and its image are symmetric relative to the plane of the mirror.

$2 v sin α$

$2 v cos α$

$v sin α$

$v cos α$

Correct answer is (a) $2 v sin α$

Q. A person walks at a velocity v in a straight line forming an angle α with the plane of a mirror. Determine the velocity vrel​ at which he approaches his image, assuming that the object and its image are symmetric relative to the plane of the mirror.

2vsinα

2vcosα

vsinα

vcosα