1计算两物块之间的弹力的一般公式N=(m_1 F_2+m_2 F_1)/(m_1+m_2).(1)特点:分子和分母上都是两项和的形式,而且分子上的两项是交叉轮换的.(2)说明:①不论是在平面上还是在斜面上,两物块之间的弹力都适用上式计算.②不论是光滑还是粗糙(摩擦因数相等),两物块之间的图1弹力都适用 1 The general formula for calculating the elastic force between two blocks N = (m_1 F_2+m_2F_1)/(m_1+m_2). (1) Characteristics: Both the numerator and the denominator are in the form of two sums, and two on the molecule The items are alternately rotated. (2) Notes: 1 Whether on the plane or on the slope, the elastic force between the two blocks is calculated by the above formula. 2 Whether smooth or rough (equal friction coefficient), two blocks The elasticity of Figure 1 is applicable