- #1
souro11
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This problem came in an exam .
An object is approaching a mirror with a SPEED V . Find the SPEED of the image relative to the object .
My solution - The object approaches the mirror with a SPEED V relative to the ground . Thus the image approaches the object with a SPEED V relative to the ground. Since this is SPEED , and NOT VELOCITY we don't give a damn to whether the image is traveling towards or away from the object , and in any case whatsoever the SPEED of the image relative to the object is going to be ZERO. However , if it has been velocity in case of speed , the relative velocity of the image w.r.t object would have been 2V.
Most people are saying the answer is 2V. Please enlighten .
An object is approaching a mirror with a SPEED V . Find the SPEED of the image relative to the object .
My solution - The object approaches the mirror with a SPEED V relative to the ground . Thus the image approaches the object with a SPEED V relative to the ground. Since this is SPEED , and NOT VELOCITY we don't give a damn to whether the image is traveling towards or away from the object , and in any case whatsoever the SPEED of the image relative to the object is going to be ZERO. However , if it has been velocity in case of speed , the relative velocity of the image w.r.t object would have been 2V.
Most people are saying the answer is 2V. Please enlighten .