This object is hanging there, it's not being accelerated so the net acceleration must be zero.
物体无加速度地，悬挂在此，合力为零，加速度亦为零。
If there is a net torque, there will be an angular acceleration, and that's what you see.
若存在净转矩，就会产生角加速度，正如你们所见。
The direction of the acceleration is the direction of the net force.
加速度的方向与合力的方向相同。
The direction of the acceleration is the direction of the net force.
加速度的方向与合力的方向相同。
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