If there were no force at the pin, g this object would be accelerated down with acceleration g, and that's not what's going to happen.
如果没有力的话，这个物体就会以加速度,往下掉，但是这,并没有发生。
Now, gravity, well force, is equal to mass times acceleration, g and the acceleration due to gravity is g.
是重力，等于质量乘以加速度，由重力导致的加速度是。
m2g Now, I know what T is, that is, m2 g + so m2 g equals m1 g sine alpha plus the maximum frictional force, which is this value.
而T又等于,因此m2g=m1gsinα,最大静摩擦力，也就是上面这个。
m2g Now, I know what T is, that is, m2 g + so m2 g equals m1 g sine alpha plus the maximum frictional force, which is this value.
而T又等于,因此m2g=m1gsinα,最大静摩擦力，也就是上面这个。
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