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Asked by sahupramod650 | 27th Nov, 2019, 03:35: PM

Expert Answer:

As per the Lorentz contraction formula,  L = Lo [ 1 - (v/c)2 ]1/2
 
where Lo is the original length of an object, L is length observed by an observer in relative motion ,
v is speed of moving object and c is speed of light
 
32 = 40 [ 1 - (v/c)2 ]1/2  ;   (32/40) = 0.8 = [ 1 - (v/c)2 ]1/2 ...................(1)
 
0.64 = [ 1 - (v/c)2 ]   or (v/c)2 = 0.36    or   v = 0.6c

Answered by Thiyagarajan K | 27th Nov, 2019, 10:23: PM

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