They would both start to slide at the same angle and the same kind of rubber.
它们都会在一样的角度开始下滑,前提轮胎是用的一种橡胶做的。
If indeed the friction coefficient is independent of surface area, then when I tilt them they should start to slide roughly at the same Angle.
若摩擦系数真的，与接触面积没有关系，那么两者下滑时的角度，应该基本相当。
The experiment results show that the diameter of seedling, speed of rotation and angle of slide cutting respectively influence the cutting resistance in sequence.
结果表明，苗木直径、转速、滑切角依次影响切削阻力大小，苗木直径与切削阻力呈平方关系；
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