Final answer:
Length contraction is a phenomenon in physics where the measured length of an object appears shorter when it is moving relative to the observer's frame of reference.
Step-by-step explanation:
Length contraction is a phenomenon in physics where the measured length of an object appears shorter when it is moving relative to the observer's frame of reference. This contraction is described by the equation L = Lo / √(1 - v2/c2) where L is the contracted length, Lo is the rest length of the object, v is the velocity of the object, and c is the speed of light.
For example, if an object has a rest length of 10 meters and is moving at 0.8 times the speed of light, its contracted length would be calculated as 10 / √(1 - 0.82) = 6.25 meters.
This phenomenon is a consequence of special relativity and is an important concept in modern physics.