Two spaceships a and b, each of the same rest length l, are moving in the same sc direction with speedsand respectively, where c is the speed of light. as measu

Two spaceships A and B, each of the same rest length L, are moving in the same SC direction with speedsand respectively, where c is the speed of light. As measured by B, the time taken by A to completely overtake B [see figure below] in units of L/c (to the nearest integer) is _ i) LA 4c/5 A 4c/5 B 3c/5 B 3e/5