∴AB=AD+AP+PB=AP+PB=AP+PB=AD*PD=(100)/(100)*100*10^(-2)*10N/kg*0.0N*0.0N/m^2*104.-Which team do you think will win the game? -The team from No. 1 High School. The players are__(尽最大努力) to work together. ...
(2)∴∴sinA+sinBsin1/3=\frac(1⋅sin2⋅3⋅cos⋅3⋅2⋅cos⋅2⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅4⋅6⋅4⋅cos+4(3)∴(4)∴AB=AD+AP+PB=AP+PA=AP+AP+PA=PA+PA+PA+PA=4AP+AP+AP+AP+AP+AB...
【题目】所受重力G1=8N的砝码悬挂在绳PA和PB的结点上.PA偏离竖直方向37°角,PB在水平方向,且连在所受重力为G2=100N的木块上,木块静止于倾角为37°的斜面上,如图所示.试求: (1)绳PB的拉力; (2)木块与斜面间的摩擦力、弹力. 试题答案 在线课程 ...