Question

In front of a plane mirror a person starts approaching with speed of 10m/s and simultaneously mirror also starts approaching with 20m/s, then with what speed image starts moving?

Answer 1

Answer:

Explanation:

velocity of the person=vp=10m/s

velocity of the mirror= vm= -20m/s(since it is in opposite direction)

velocity of the image=velocity of the person-velocity of the mirror

v of image=10+20=30 m/s

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