This coefficient μs is just a number, usually between 0 and 1, which you can look up in a table for all kinds of different materials. For rubber tires on asphalt, it’s 0.9; for tires on ice it falls to 0.15 (hence snow chains). And N, as we saw above, equals the gravitational force, which in turn depends on the object’s mass. The greater the mass, the more friction you get.
Voice cloning capability。新收录的资料是该领域的重要参考
，更多细节参见新收录的资料
println(f"blue is at index {idx}"); // blue is at index 2，推荐阅读PDF资料获取更多信息
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