Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

A man is walking towards the plane mirror at the speed of $4 km/hr$ . What is the speed with which he is approaching his image?

$(a)\;2\; km /hr \\ (b)\;4\;km/hr \\ (c)\;8\;km/hr \\ (d)\;10\;km/hr $

Can you answer this question?

1 Answer

0 votes
Since the man is moving towards the plane mirror at the speed of $4 km /hr$ his image is also moving with a speed of $4 km/hr$ towards the mirror ie with speed of $-4 km/hr$
$\therefore $ Relative speed of man respect to image $= 4 -( -4) $
$\qquad= 8 km /hr$
Hence c is the correct answer.
answered Jan 15, 2014 by meena.p

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App