A cubical box dimension L = 5/4 m starts moving with an acceleration a→=0.5ms−2i^ from the state of rest. At the same time, a stone is thrown from the origin with velocity V→=v1i^+v2j^−v3k^ with respect to earth. Acceleration due to gravity g→=10ms−2(−j^). The stone just touches the roof of box and finally falls at the diagonally opposite point. then: