A vertical mirror is placed at the origin. A ray of light coming from A is...
A vertical mirror is placed at the origin. A ray of light coming from A is reflected by the mirror so that it passes through B. How far from the bottom does the ray hit the mirror? The coordinates are A=(10.5, 15.1) and B=(15.9, 4.9), in centimetres.
Homework Answers
15.1-y/10.5 = y-4.9/15.9
15.1-y =
240.09 - 15.9*y = 10.5*y - 51.45
26.4y = 291.54
y = 11.04 cm -----------> answer
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