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// Ex1_3 Page:12 (2014)
clc; clear;
c = 1; // For simplicity assume speed of light to be unity, m/s
L0 = 1; // For simplicity assume the classical length of the rod to be unity, m
d = 1; // Percentage difference of relativistic length from the classical length
L = (1 - d/100)*L0; // Relativistic length, m
v = poly(0, "v"); // Declare speed variable
v = roots(1 - v^2 - (L/L0)^2); // Relativistic speed of the moving object
printf("\nThe speed at which the relativistic value for length differ from the classical value by one percent = %5.3fc", v(1));
// Result
// The speed at which the relativistic value for length differ from the classical value by one percent = 0.141c
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