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You are not logged in. #1 20120222 05:44:32
The two trainsTwo trains 140 meters and 160 meters long run at the speeds of 60 km/hour and 40 km/hour respectively in the opposite directions on parallel tracks. Find the time in seconds which they take to cross each other. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #2 20130414 04:54:21
Re: The two trains
10.8 seconds? Yeah, I’d say so. Look at the problem this way. Each train is travelling at 100 km/hour relative to the other and has 300 metres to travel. So the time taken is . 134 books currently added on Goodreads #3 20130726 21:08:28
Re: The two trainsthis problem can be solved using the equation: #4 20130726 21:22:38
Re: The two trainsHi all; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 