而因为重力在平行于斜面的方向上也有了分力,因此,需要额外的阻力(如摩擦力)来平衡,阻止物体加速滑下。 Figure 1: FN represents the normal force Figure 2: Weight (W), the frictional force (Fr), and the normal force (Fn) acting on a block. Weight is the product of mass (m) and the accelera...
而因为重力在平行于斜面的方向上也有了分力,因此,需要额外的阻力(如摩擦力)来平衡,阻止物体加速滑下。 Figure 1: FN represents the normal force Figure 2: Weight (W), the frictional force (Fr), and the normal force (Fn) acting on a block. Weight is the product of mass (m) and the accelera...