After 5 seconds, distances travelled are 25 ft and 5ft. Distance between them will be the hypotenuse of a right angled triangle formed by 3 points ( current positions and starting point ) Distance = √(625 + 25) = 25.0998

What the heck is this

5.1 ft/sec is answer

But, does the rain play a role... Maybe one of them trips, 4 seconds later?!?!?!😆