Why do ships passing close together run a risk of sideways collisions?
Solution 23RQ This can be explained on the basis of Bernoulli’s equation, P + 1/2 dv = constant…..(1), here d = density of the liquid, P = pressure ,v = speed of the liquid. When the two ships are passing close together, the speed of water passing between them is more than that outside them. Increased water speed results in decrease in water pressure between the two ships with respect to their outer space. Thus, to compensate the reduction in speed between them, the two ships will approach each other and collide.