A 400-ton train runs south at a speed of 60 mi/h at a latitude of 60◦ north.
- What is the horizontal force on the tracks?
- What is the direction of the force?
Note: \href{https://www.google.com/search?q=1000+lbs+to+ton&ie=utf-8&oe=utf-8&client=firefox-b}{1 ton = 2000 lbs}
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