Motion

A rocket is moving in a gravity free space with a constant acceleration of 2ms−2 long with +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 speed of 0.3ms−1 relative to the rocket. At the same time, another ball is thrown in −x direction with a speed of 0.2ms−1 from its right end relative to the rocket. The time in seconds when the two balls hit each other