Mathematics · Relative Motion
A rocket is moving in gravity-free space with a constant acceleration of 2 m/s2 in the +x direction. The length of a chamber inside the rocket is 4 m. A ball is thrown from the left end of the chamber in the +x direction with a speed of 0.3 m/s relative to the rocket. At the same time, another ball is thrown in the -x direction with a speed of 0.2 m/s from the right end relative to the rocket. What is the time (in seconds) when the two balls collide?
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