SRW vs DRW
Good morning everyone hope your all doing well, So just recently we built a home off of a lake we used to camp at regularly, by doing that we've cut our camping in maybe half.... we spend our usual 1 ...
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Flashman wrote:Mike134 wrote:fj12ryder wrote:
If you have more contact surface, you'll have more friction/braking. That's why race cars have very wide tires: bigger tires=better grip.
Yep!! I can tell you paid attention in your HS physics class.
Consider a train - very small contact surface and pulling more than any RV. It is psi on the contact patch - the larger the patch the less PSI if the weight is the same.
It's not the PSI, it's the coefficient of friction between the 2 steel surfaces. "static" friction" vs "sliding friction" The Steam engine is an example what happens when the weight remains the same but you loss your static friction and now have sliding friction. ABS brakes another example.
