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on9 - Solution for On-Line Homework 9 Reference Frames II...

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Unformatted text preview: Solution for On-Line Homework 9 Reference Frames II Solution to On-Line Homework Problem 9.1() Problem: The Galilean transformations between refer- ence frames are summarized as: • x ′ = x − ut • t ′ = t • a ′ = a • v ′ = v − u One reference frame is traveling with a velocity u with respect to the other, assumed to be “at rest”. Which frame is moving, the primed or the unprimed frame? Select One of the Following: (a-Answer) the primed frame (b) the unprimed frame (c) neither (d) both have to be moving Discussion All of these equations give this type of relationship: x ′ is the position of the object as it appears in a reference frame moving with velocity u with respect to the frame where the value x was measured (lab frame). 1 So, the primed frame is the “moving” frame. a and t being the same in both the primed and unprimed frames means acceleration and time are the same every- where, it doesn’t matter what your relative speed is to another inertial reference frame. (No relativity here!)another inertial reference frame....
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