| ||
3 |
100
| ||
3 |
mg |
cosα |
10×10 | ||||
|
200
| ||
3 |
200
| ||
3 |
100
| ||
3 |
200
| ||
3 |
100
| ||
3 |
A.匀速直线运动 |
B.初速度为零的匀加速直线运动 |
C.自由落体运动 |
D.平抛运动 |
A.T1=mgtanθ,T2=mgsinθ,T3=mgtanθ |
B.T1=mgtanθ,T2=mgcosθ,T3=mgtanθ |
C.T1=mgtanθ,T2=mgsinθ,T3=mgcotθ |
D.T1=mgcotθ,T2=mgsinθ,T3=mgtanθ |
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