Can someone help me out on this one? As in could you kind of offer a solution, and how to eliminate choices here? This is the only 1 I couldn't get so far.
Can someone help me out on this one? As in could you kind of offer a solution, and how to eliminate choices here? This is the only 1 I couldn't get so far.
In your book, is 4.4b the one comparing a tugboat to an oil tanker, is it about balls colliding, or is it asking about why drivers seem to walk away from crashes where their cars tumble multiple times? Sorry, but I have three different versions of the book, and I'm not sure which one is the most recent.
The problem with a huge oil tanker in harbor is that it has such a large mass that even at low speeds it's momentum is large. The question gives you a hint when they say "even when they have the same initial approach speed." At the same speed, the small tugboat will have less momentum than the large oil tanker. This means that the best answer has to do with momentum, so the right answer must be either A or B.
Choice C is true that the oil tanker experiences a greater buoyant force than the tugboat, but that fact is irrelevent in this question. The concern is momentum and potential collisions involving the oil tanker into the dock.
Because the oil tanker has greater mass and therefore greater momentum, choice B is an untrue statement while choice A is a true statement. Choice A is the correct answer.
