Basically the title. Considering that train wheels are made of metals and run on metal tracks, how do they prevent wheelslip or loss of traction especially when starting with heavy loads or when going uphill? I’ve heard of sandboxes which can be used to provide more grip by spraying sand onto the track but I’m not sure if they’re still prevalent.
Thanks!
In: 72
Trains are very very very heavy. Friction is determined by two things: the ‘slipperiness’ (coefficient of friction) between two things and the force of of the things pushing together (normal perpendicular force) for example a heavy train pushing down on the track. So you are right, metal on metal is a bit slippery, but the train is super heavy.
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