The problem involves an object approaching a plane mirror and seeks to determine the speed at which it gets closer to its reflection. The subject area relates to kinematics and motion in relation to reflections.
There is an ongoing exploration of the reasoning behind the relationship between the object's speed and the speed at which it approaches its reflection. Some participants express uncertainty about the definitions of the time intervals involved, while others affirm the correctness of the initial reasoning.
Participants are working within the constraints of a homework problem, which may limit the depth of exploration and the information available for discussion.
annalian said:As l (length of road) is twice as big l2=2l1, but the time is equal t1=t2, then velocity should be two times bigger. Am I right?
Could you give me a hint about the correct one?CWatters said:Your answer is correct but I'm not sure I understand your reasoning.
You need to explain how you are defining t1 and t2. These are the times taken to do what? (I believe your reasoning is fine if you fill that in appropriately.)annalian said:Could you give me a hint about the correct one?
t1 is the time taken to meet the mirror, t2 i the time taken to meet the reflection. As the mirror and reflection are met in the same time t1=t2haruspex said:You need to explain how you are defining t1 and t2. These are the times taken to do what? (I believe your reasoning is fine if you fill that in appropriately.)
With that preamble, your answer looks good to me.annalian said:t1 is the time taken to meet the mirror, t2 i the time taken to meet the reflection. As the mirror and reflection are met in the same time t1=t2