在重力场中,将一任意形状的不可形变的物体(刚体)穿过水平轴悬挂起来,使其做小角度摆动,不计一切阻力和摩擦力,这就构成了复摆,复摆又称物理摆,如图1所示,其中rC为悬挂点O到质心C的距离.对某一确定的复摆,其微小振动的周期是一个定值.复摆周期公式的证明较为复杂,通常要用到高等数学的知识.其实可以通过对复摆转动的角速度进行分析并与单摆进行比较,可以巧妙地得到复摆的周期公式.这里需要特别说明的是,虽然全国中学生物 In the gravitational field, a non-deformable object (rigid body) of arbitrary shape is suspended across the horizontal axis to make it swing at a small angle, excluding all resistance and friction force, thus forming a complex pendulum, also known as physical Pendulum, as shown in Figure 1, where rC is the distance from the suspension point O to the centroid C. For a given complex pendulum, the period of its tiny vibration is a fixed value. The complex pendulum cycle formula proved more complicated and usually used To higher mathematics knowledge.In fact, the complex pendulum can be rotated by the angular velocity analysis and comparison with the pendulum, you can subtly get the complex pendulum cycle formula.Need to be particularly noted here is that although the national secondary school biology