Final answer:
To find the value of u, given v = 0.500c and u' = -0.750c, we can use the equation u = 2v - u'. Substituting the known values, we have u = 1.750c.
Step-by-step explanation:
To find the value of u given v = 0.500c and u' = -0.750c, we can use the equation u = 2v - u'. Substituting the known values, we have u = 2(0.500c) - (-0.750c) = 1.000c + 0.750c = 1.750c.