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mariarad [96]
3 years ago
14

1. A plane mirror has asurface​

Physics
2 answers:
WARRIOR [948]3 years ago
4 0
Reflective surface

Explanation
kenny6666 [7]3 years ago
3 0

Answer:

A plane mirror is a mirror with a flat (planar) reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence. The angle of the incidence is the angle between the incident ray and the surface normal (an imaginary line perpendicular to the surface).

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At the top, the velocity only has horizontal component, so v=12 m/s is v_x, which is v*cos(theta), because v_x is constant, so the same when it was launched or now.

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