Two boats are initially separated by distance d and head directly toward one ano

Question

Two boats are initially separated by distance d and head directly toward one another. The skippers of the boats want to arrive at the same time at the point that is halfway between their starting points. Boat 1 moves at a speed v and boat 2 moves at twice the speed of boat 1. Because it moves faster, boat 2 starts at time t later than boat 1. The skippers want to know how much later boat 2 should start than boat 1. Provide them with an equation for t in terms of d and v. (a) t= d/4v (b) t=3d/2v (c) t=3d/4v (d) t= d/2v

Explanation / Answer

time for boat 1 = d/v time for boat 2 = d/v - t = d/2v because speed of boat 2 = 2* speed of baot 1 = 2*v = 2v so t = d/v - d/2v = d/2v ans is d

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