A rocket is moving in a gravity free space with a constant acceleration of 2 ms2 along + x direction (see figure). The length of a chamber inside the rocket is 4 m. A ball is thrown from the left end of the chamber in + x direction with a speed of 0.3 ms relative to the rocket. At the same time, another ball is thrown in -x direction with a speed of 0.2 ms from its right end relative to the rocket. The time in seconds when the two balls hit each other is 0.3 ms 4 m 0.2 ms a = 2 ms X