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Physics
Physics
Problem
A stationary plane mirror is inclined at an angle
θ
=
37
∘
\theta = 37^{\circ}
θ
=
3
7
∘
to the horizontal. An object moves horizontally towards the mirror with speed
v
=
5
m/s
v = 5\,\text{m/s}
v
=
5
m/s
. Find the speed of the image. (Use
cos
37
∘
=
0.8
\cos 37^{\circ} = 0.8
cos
3
7
∘
=
0.8
).
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