大师作文网An Atwood's machine consists of two masses,m1 and m2 (m2 > m
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An Atwood's machine consists of two masses,m1 and m2 (m2 > m1),which are
connected by a massless inelastic cord that passes over a pulley.Model the pulley as a cylinder of unknown radius R and known mass M.Noting that the tensions F1 and F2 are not equal,if the masses m1,m2 and M are known,find the acceleration of the system.
connected by a massless inelastic cord that passes over a pulley.Model the pulley as a cylinder of unknown radius R and known mass M.Noting that the tensions F1 and F2 are not equal,if the masses m1,m2 and M are known,find the acceleration of the system.
滑轮力矩,作用产生转动加速度
F1-M1G = M1a
M2G-F2 = M2a
F2-F1 = 滑轮受力F
转动惯量*角加速度 = F*R 动转惯量是=1/2MR2
角加速度*R = a
联立上面方程
（F2-F1）R=a/R *1/2MR2
F1=M1G+M1a
F2=M2G-M2a
则M2G-M2a-M1G-M1a =1/2Ma
a=（2M2G-2M1G）/（M+2M2+2M1)
F1-M1G = M1a
M2G-F2 = M2a
F2-F1 = 滑轮受力F
转动惯量*角加速度 = F*R 动转惯量是=1/2MR2
角加速度*R = a
联立上面方程
（F2-F1）R=a/R *1/2MR2
F1=M1G+M1a
F2=M2G-M2a
则M2G-M2a-M1G-M1a =1/2Ma
a=（2M2G-2M1G）/（M+2M2+2M1)
英语翻译two masses,m1 and m2,connected to each other and to a ce
m1,m2,
M1和m2是什么意思
什么是M1和M2
电子称M1,M2,M3,
建筑中M1 M2
m0 m1 m2
设计一个控制电路：电动机M1、M2,M1启动10s后M2自行启动,按停止按钮M2直接停止,10S后M1自行停止.
英语翻译A machine consists of a number of machine elements.The m
我的是佳能ixus100L、M1\M2\M3\S\W
如何证明（[m1,m2],m3）｜[(m1,m3),(m2,m3)]
M1*V1+M2*V2=(M1+M2)V3