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静摩擦力
Introduction
有很多种摩擦，其中一种是静摩擦，它往往使物体保持静止状态。当人们试图使物体在表面上运动时，就会面临这种摩擦。然而，这种力不会触发物体与其表面之间的运动。它可以被称为摩擦力，在特定的持续时间内平衡施加在物体上的力。
Static Friction − Definition
摩擦力是一种阻碍或阻碍固体运动的力。静摩擦力与阻碍物体沿特定路径运动的力有关。当人们倾向于在平面上移动静止物体，而不使物体与其表面相对运动时，就会注意到这一点。
例如，挂在架子上的毛巾或停在山上的汽车会遇到静摩擦。放在桌子上的书会产生静摩擦。
根据Marques等人（2019）的说法，这是一种摩擦力，在特定的时间段内准确地平衡静止物体的作用力。该摩擦力被称为自调节力，这意味着静摩擦力将与施加在物体上的力相等且相反。
Images Coming soon
Static Friction: Formula
静摩擦力公式写成F=$mathrm{mu}$N，其中F是静摩擦力，M是静摩擦系数，N是法向力，也可以称为接触力。
这是物体表面和其所在路径表面之间存在的摩擦力，两者之间不存在运动。因此，在这种情况下，物体和表面处于静止运动中，当物体开始运动时，摩擦力就存在了。在静摩擦的情况下，物体抓住其所在平面表面的强度由称为摩擦系数的数值表示。
帮助物体在静止状态下躺在表面上而不摔倒或向下滚动的相对力被称为法向力，这意味着物体表面施加的力，以提供一定程度的支撑。在这种情况下，法向力将以某个角度作用，该角度将考虑其分量。如果表面是平面的，则法向力将与施加在其上的重力相同。该静态力的系数由符号$mathrm{mu}$表示。
如果一辆车倾向于滑下斜坡，突然刹车，那辆车就会行驶几英寸，然后到达静止位置。在这种情况下，静摩擦力被施加到它上，这有助于阻止汽车打滑。
Images Coming soon
Static Friction − Laws
有两个不同的定律与静态摩擦运动有关。静摩擦力的最大值并非没有接触区域。正如Wang等人所认为的那样。（2018），静摩擦力的最大力与法向力相当，为了进一步阐述，可以说，在法向力增加的情况下，特定物体在不运动的情况下所能承受的最大外力也会增加。
Limiting Friction: Description
极限摩擦力是指当特定物体将要在不同物体的表面上移动时产生的静摩擦力的最高值。在这种情况下，由于外力高于极限摩擦力，物体开始移动。在物体开始运动的情况下，静摩擦就不存在了，新的摩擦就产生了，这就是动摩擦。
Conclusion
物体和表面之间存在着各种各样的运动，静摩擦就是这样一种运动，它与个体在试图使物体在特定表面上运动而不实际使其运动时所面临的摩擦有关，从而触发动摩擦的存在。静摩擦是指物体在承受一定的力后，能够保持静止状态的状态。
FAQs
问题1.摩擦的原因是什么
答：摩擦力是由特定物体所在表面的不规则性引起的。物体和表面的粘性是由两个物体之间的某种结合引发的，这种结合导致粘附——这种粘附决定了物体表面和物体所在表面之间的静摩擦强度。
问题2.限制摩擦力的两个主要定律是什么
Ans.极限摩擦力切向作用在两个相互作用表面上，极限摩擦力大小与两个相互影响表面之间的法向反作用力成正比。
Q.3.什么时候达到最大静摩擦力
Ans. The maximum static friction is attained right before the body attains a state of motion before it begins to move or spde. Mathematically, this value can be obtained from the multippcation of the static friction with the normal force that is being exerted by the surface that is in contact with the body.
问题4.什么是动摩擦
答：这是物体在平面上开始移动时产生的摩擦力。动摩擦也称为滑动摩擦或动摩擦。