请教一下

谢谢哈

所有跟帖： 

• B 往上弹？ -注册用户20240725- ♀ (0 bytes) () 12/14/2024 postreply 09:01:48

• no -Leileima- ♀ (0 bytes) () 12/14/2024 postreply 09:03:47

• Curved path with both horizontal and vertical acceleration? -zeno- ♀ (0 bytes) () 12/14/2024 postreply 09:05:02

• What's the distance point B moved along the floor? -Leileima- ♀ (0 bytes) () 12/14/2024 postreply 09:07:00

• 0？ -注册用户20240725- ♀ (0 bytes) () 12/14/2024 postreply 09:09:25

• 不是，往右move了一段距离，但不知道如何求这段距离 -Leileima- ♀ (0 bytes) () 12/14/2024 postreply 09:12:42

• 假设重量在中心点？那就是两个力，阻力和重力的x y方向平衡？ -Bailey4321- ♀ (0 bytes) () 12/14/2024 postreply 09:15:41

• There is no friction! -Leileima- ♀ (0 bytes) () 12/14/2024 postreply 09:22:48

• L/2(1-costheta) -绿荷尖尖- ♀ (0 bytes) () 12/14/2024 postreply 11:24:06

• 先算 angular acceleration -zeno- ♀ (262 bytes) () 12/14/2024 postreply 09:15:24

• How can you calculate t? In addition, there is no pivot -Leileima- ♀ (99 bytes) () 12/14/2024 postreply 09:22:19

• consider the vertical motion -zeno- ♀ (114 bytes) () 12/14/2024 postreply 09:39:42

• 不对，加速度不是常量 -Leileima- ♀ (0 bytes) () 12/14/2024 postreply 10:01:18

• you want Torque(t)? I thought you want Time (t).. -zeno- ♀ (81 bytes) () 12/14/2024 postreply 10:31:24

• 水平向右 -oldbridge- ♂ (0 bytes) () 12/14/2024 postreply 09:37:02

• 向右how many? -Leileima- ♀ (0 bytes) () 12/14/2024 postreply 10:02:09

• 中心在水平方向保持不变，简单算一下就知道了 -oldbridge- ♂ (0 bytes) () 12/14/2024 postreply 10:07:57

• X方向是变的 -Leileima- ♀ (0 bytes) () 12/14/2024 postreply 10:17:28

• B静止，因为没有水平力 -12度圆缺- ♂ (0 bytes) () 12/14/2024 postreply 09:53:32

• 不对 -Leileima- ♀ (0 bytes) () 12/14/2024 postreply 10:03:19