Vertical plane mirror and speed of image relative to ground? - vertical ground radials
A student who is a mirror plane perpendicular to 6 m / s, while the mirror is mounted on wheels, about 1 m / s. The speed at which the image moves relative to the ground
8 m / s
7 m / s
13 m / s
5 m / s
14 m / s
This question seems so simple, but somehow rationalize. Any help on this?
Wednesday, December 9, 2009
Vertical Ground Radials Vertical Plane Mirror And Speed Of Image Relative To Ground?
1 comment:
The answer is: 8 m / s.
You should consider the problem in the mirror. The student went to the mirror at a speed of 6 +1 = 7 m / s, and the same image as the speed of 7 m / s in the opposite direction. Thus, the pace of the image in the frame of reference would be Earth-7ms +-1m / s = 8 m / s, and the velocity is 8 m / s.
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