Question

5. A man is approaching a plane mirror at the rate of 3 miles per hour....

5.

A man is approaching a plane mirror at the rate of 3 miles per hour. Then his image approaches him at the rate of

3 miles per hour.

6 miles per hour.

3/2 miles hour.

9 miles per hour.
Science   Physics   
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Answer #1

Solution:

When you stand before a mirror, distance of you from mirror is equal to distance between mirror to you.

Thus, if you will move towards the mirror with a velocity of 3 miles per hour.

the mirror image will move towards to you with velocity of 3 miles per hour  only.

Thus, By using relative velocity

your speed towards mirror + mirror image speed towards you is

= 3 + 3

= 6 miles per hour.

Ans: B.

I hope you understood the problem and got your answers, If yes rate me!! or else comment for a better solutions.

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