1 |
3 |
E |
R+r |
B2d2vm |
R+r |
(F-f)(R+r) |
B2d2 |
F安 |
Bd |
F-f |
Bd |
(F-f)2R |
B2d2 |
1 |
3 |
1 |
3 |
F-F安′-f |
m |
2(F-f) |
3m |
(F-f)(R+r) |
B2d2 |
(F-f)2R |
B2d2 |
1 |
3 |
2(F-f) |
3m |
A.斜面倾角α=60° | ||||
B.A获得最大速度为2g
| ||||
C.C刚离开地面时,B的加速度最大 | ||||
D.从释放A到C刚离开地面的过程中,A、B两小球组成的系统机械能守恒 |
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