A 2100 kg asteroid travels through space at a constant 5 km/s in the +y direction. An alien spaceship lands in the asteroid and grabs it. The spaceship has a mass of 3400 kg and was traveling at 12 km/s at an angle of 30 degrees relative to the +x-axis before the collision. What is the magnitude and direction of the asteroid and spaceship's velocity after the landing? Include a sketch of the before and after motion with coordinate system

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.