You observe a rocket moving toward you. Compared to its length when it was at rest on the ground, you will measure its length to be shorter, longer, or the same. Explain please!
The incoming rocket will appear to have shorter length, due to the effect of LENGTH CONTRACTION.
Length Contraction is independent of direction of moving object, i.e. rocket length will again appear shorter, when rocket will move away from observer.
*LENGTH CONTRACTION : It is the phenomenon due to which moving object length will appear shorter, as compared to original length when ojbect is in rest.
The phenomenon of Length contraction takes place only along the motion direction.
Length Contraction ,

here,
L0 = Original length
v = speed of an object
c = speed of light
= lorentz
factor
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