Weight plays a factor here. A heavy freight train may struggle on sharp curves as forces pull intermediate wagons off the rails.
So a properly loaded train taking this curve could safely do it at 10mph; however, overload the train and you have to go slower than 10mph or else physics will knock you off the rails.
Another example: Try to take a 90 degree turn in a sports car at 30mph = you’ll be okay. Try to take a 90 degree turn in an truck that literally weighs a ton = that won’t end well.
Hard for me to understand how train cars going 10 MPH can derail. I do understand the cars going 106 MPH in New York on a curve derailing.
Weight plays a factor here. A heavy freight train may struggle on sharp curves as forces pull intermediate wagons off the rails.
So a properly loaded train taking this curve could safely do it at 10mph; however, overload the train and you have to go slower than 10mph or else physics will knock you off the rails.
Another example: Try to take a 90 degree turn in a sports car at 30mph = you’ll be okay. Try to take a 90 degree turn in an truck that literally weighs a ton = that won’t end well.
Does that make sense?
“Try to take a 90 degree turn in an truck *at 30mph* that literally…”